• Infinite Pancakes, Anyone? Siobhan Roberts's article "Infinite Pancakes, Anyone?" (based on "Cutting a Pancake with an Exotic Knife", Item 403 below), appeared in the digital version of the New York Times on January 20 2026 (see here). I am told it will appear in the print version of the New York Times in the Science Section on Tuesday, January 27 2026, possibly with a slightly different title.

Most recent talkss and papers, in reverse chronological order:

• 404. The Lollipop Problem, Dec. 25-26, 2025.
• 403. David O. H. Cutler and Neil J. A. Sloane, Cutting a Pancake with an Exotic Knife, arXiv:2511.15864 [math.CO], Dec. 20, 2025. The most up-to-date version is on my home page: Cutting a Pancake with an Exotic Knife, Jan. 1, 2026 (this supersedes the arXiv version).
• 402. Cutting a Pancake With an Exotic Knife, Talk in Doron Zeilberger's Experimental Math Seminar at Rutgers University, Sep 11 2025: Youtube, Vimeo video, Slides, Another copy of slides.
• 401. In the Footsteps of Heraclitus, REU Seminar at Rutgers University, June 24 2025. Slides.
• 400. The Remarkable Sequences of Eric Angelini, Talk in Doron Zeilberger's Experimental Math Seminar at Rutgers University, Dec 19, 2024: Youtube, Vimeo video, Slides, Another copy of slides.
• 399. A Nasty Surprise in a Sequence and Other OEIS Stories, Talk in Doron Zeilberger's Experimental Math Seminar at Rutgers University, Oct 10, 2024 (my 85th b'day): Youtube, Vimeo video, [The talk begins after about 60 seconds of confusion.] Slides, Another copy of slides.
• 398. J. A. Reeds and N. J. A. Sloane, A Finite Matrix with Grothendieck Ratio Greater than Sqrt(2), Manuscript, June 2024. [A write-up of work we did about 20 years ago.]
• 397. The Reluctance of a Sequence, Guest Lecture, Math 640, Rutgers, May 2 2024 Slides.
• 396. Eric Angelini's Comma Sequence, Talk in Doron Zeilberger's Experimental Math Seminar at Rutgers University, January 18, 2024: Youtube, Vimeo video, Slides, Another copy of slides.
• 395. Eric Angelini, Michael S. Branicky, Giovanni Resta, N. J. A. Sloane, and David W. Wilson, The Comma Sequence: A Simple Sequence With Bizarre Properties, arXiv:2401.14346, Jan 25 2024. Fibonacci Quart. 62 (2024), no. 3, 215-232.
• 394. Pictures from 50 Years of the OEIS, Talk in Kansas State University Mathematics Department's Art and Mathematics Seminar, Nov. 2 2023: Video, Slides, Another copy of slides.
• 393. New Gilbreath Conjectures, Sum and Erase, Dissecting Polygons, and Other New Sequences, Talk in Doron Zeilberger's Experimental Math Seminar at Rutgers University, Sept. 14, 2023: Video (Youtube), Video (Vimeo), Slides, Another copy of slides, Postscript to talk.
• 392. N. J. A. Sloane and Gavin A. Theobald, On Dissecting Polygons into Rectangles, arXiv:2309.14866 [math.CO], 2023.
• 391. Brady Haran and N. J. A. Sloane, The Yellowstone Permutation, Numberphile video, Jan 29 2023.
• 390. "`A Handbook of Integer Sequences' Fifty Years Later". 2023 is the 50th anniversary of the publication of "A Handbook of Integer Sequences" (Academic Press, 1973), which listed 2,372 sequences. (Today, Dec. 26 2025, after more than 50 years work by many thousands of people, the database contains 391,515 entries.) My retrospective article can be seen on the arXiv (free, but lower quality figures), in the Mathematical Intelligencer on 17 April 2023 (html or pdf) (Open Access), and on my home page here (which has the highest quality figures). It was followed by several other articles:
  1. Most notably, Siobhan Roberts wrote an article "What Number Comes Next? Ask the Encyclopedia of Integer Sequences" for the New York Times, which appeared online on May 21 2023. It can be found on the New York Times online archive here, and there is also a copy on my home page here. It appeared in the print version of the New York Times in the Science Section on Tuesday, May 23 2023, with a slightly different title.
  2. Manon Bischoff, The Most Boring Number in the World is ..., Scientific American, March 3 2023. (Originally appeared in Spektrum der Wissenschaft.)
  3. The French website La Recherche did an interview with me (in French).
  4. The French magazine Science et Avenir (on every newsstand in the French-speaking world) had an article about me in the April 21 2023 issue entitled "Les `nombres premiers de la Bête' et autres étrangetés mathématiques de l'encyclopédie des suites d'entiers". (I carefully chose a photo that doesn't look like me, because I didn't want people pointing at me next time I'm in France, and saying "He has the Number of the Beast".)
  5. ThatsMaths, A Remarkable Sequence in OEIS, Sep 28 2023.
  6. This reminded me that in 1987 James Gleick wrote an article "In a `random world', he collects patterns" about me which appeared on the front page of the New York Times Tuesday Science Section on January 27 1987 (Page 1 left, page 1 right, page 2 left, page 2 right, transcript).
  7. There is also an older list of Press Clippings.
• 389. Brady Haran and N. J. A. Sloane, "A Number Sequence with Everything" (the Inventory Sequence A342585), Numberphile video, November 2022.
• 388. Brady Haran and N. J. A. Sloane, Problems with Powers of Two, Youtube Numberphile Video, Sep 21 2022; STOP PRESS: Postscript to Problems with Powers of Two, Sep 21 2022. See A352178 for the latest results.
• 387. New Sequence Problems and Solutions from 2022, Talk in Doron Zeilberger's Experimental Math Seminar at Rutgers University, Sept. 15, 2022; Youtube video, Slides
• 386. Michael De Vlieger, Thomas Scheuerle, R\'{e}my Sigrist, N. J. A. Sloane, and Walter Trump, The Binary Two-Up Sequence, arXiv:2209.04108, Sep 11 2022.
• 385. Blog: The Two-Up Sequence A090252, June 13 2022. I started a blog about a very interesting "Lexicographically Earliest" sequence A090252 that might be solvable with a collective effort. Many conjectures but few theorems. This blog is now frozen.
• 384. The On-Line Encyclopedia of Integer Sequences: An illustrated guide with many unsolved problems, Guest Lecture given in Doron Zeilberger's Experimental Mathematics Math640 Class, Rutgers University, Spring Semester, Apr 28 2022: Video, Slides.
• 383. Brady Haran and N. J. A. Sloane, Stones on an Infinite Chessboard, Numberphile video, January 2022.
• 382. Max A. Alekseyev and N. J. A. Sloane, On Kaprekar's Junction Numbers, Journal of Combinatorics and Number Theory, 12.3 (2020) [2023], 115-155.
• 381. Brady Haran and N. J. A. Sloane, Most Wanted Prime, Numberphile video, December 2021.
• 380. Lovely New Problems From the Past Months. Talk in Doron Zeilberger's Experimental Math Seminar at Rutgers University, Sept. 9, 2021; Video, Slides
• 379. The OEIS: A Fingerprint File for Mathematics, article for "Early Careers" section of Notices of Amer. Math. Soc., 68:9 (October 2021), 1515-1516.
• An ongoing project (with Omar Pol and Hartmut Hoft) involves an object that fits in a corner, technically an encoignure. I wrote the following poem to show how to pronounce it.

  Bad Furniture
  
  The wardrobe has lost a lobe,
  The blender has gone on a bender,
  The pouf is rather uncouth,
  The armoire is not for moi,
  The icebox is full of rocks,
  The credenza has influenza,
  And worst of all,
  The encoignure is full of manure.
  

• Lars Blomberg, Scott R. Shannon, and N. J. A. Sloane, Graphical Enumeration and Stained Glass Windows, 1: Rectangular Grids, Preprint, revised May 21 2021. To appear in INTEGERS.
• Lars Blomberg, Scott R. Shannon, and N. J. A. Sloane, Graphical Enumeration and Stained Glass Windows, Additional Illustrations for Part 1, Rectangular Grids, Preprint, May 24 2021.
• M. Alekseyev, J. S. Myers, R. Schroeppel, S. R. Shannon, N. J. A. Sloane, and P. Zimmermann, Three Cousins of Recaman's Sequence, New version, May 29 2021, accepted for publication in Fibonacci Quarterly.
• F. Michel Dekking, Jeffrey Shallit, and N. J. A. Sloane, Queens in exile: non-attacking queens on infinite chess boards, Electronic J. Combin., 27:1 (2020), #P1.52.
• Eric Angelini, Lars Blomberg, Charlie Neder, Remy Sigrist, and N. J. A. Sloane, "Choix de Bruxelles": A New Operation on Positive Integers, arXiv:1902.01444, Feb 2019; Fibonacci Quarterly, 57:3 (2019), 195-200.
• N. J. A. Sloane, The On-Line Encyclopedia of Integer Sequences, Notices, Amer. Math. Soc., 65 (No. 9, Oct. 2018), 1062-1074.
• C. Goodman-Strauss and N. J. A. Sloane, A Coloring Book Approach to Finding Coordination Sequences, Acta Crystallographica Section A: Foundations and Advances, 2019, Volume A75, pages 121-134. Also on my home page. Also arXiv:1803.08530. [Last revised Jan 29 2019]
• Moa Apagodu, David Applegate, N. J. A. Sloane, Doron Zeilberger, Analysis of the Gift Exchange Problem, 2017. Also arXiv:1701.08394, although the version on my home page may be more up-to-date. [Last revised Jan 30 2017]
• Shalosh B. Ekhad, N. J. A. Sloane, and Doron Zeilberger, Automated Proofs (or Disproofs) of Linear Recurrences Satisfied by Pisot Sequences, 2016. Also arXiv:1609.05570, although the version on my home page may be more up-to-date. [Last revised Sep 27 2016]
• Margaret Wertheim, The Fax Numbers of the Beast, and Other Mathematical Sports: An Interview with Neil Sloane, Cabinet Magazine, Issue 57, Spring 2015, pages 48-54.
• Siobhan Roberts, How to Build a Search Engine for Mathematics: The surprising power of Neil Sloane's Encyclopedia of Integer Sequences, Nautilus Magazine, Issue 29, Chapter 4, Oct 22 2015.
• Featured in Slashdot on August 7 2015.
• Erica Klarreich, The Connoisseur of Number Sequences, Quanta Magazine, August 6 2015.
• May 2015: Elected Fellow of The Learned Society of Wales (FLSW)
• Shalosh B. Ekhad, N. J. A. Sloane, and Doron Zeilberger, Odd-Rule Cellular Automata on the Square Grid, 2015. Also arXiv:1503.04249, although the version on my home page may be more up-to-date. [Last revised Mar 20 2015]
• Shalosh B. Ekhad, N. J. A. Sloane, and Doron Zeilberger, A Meta-Algorithm for Creating Fast Algorithms for Counting ON Cells in Odd-Rule Cellular Automata, 2015. Also arXiv:1503.01796, although the version on my home page may be more up-to-date. See also the accompanying Maple package. [Last revised Mar 05, 2015.]
• N. J. A. Sloane, On the Number of ON Cells in Cellular Automata, submitted to Ron Graham Festschrift, 2015. Also arXiv:1503.01168, although the version on my home page may be more up-to-date. [Last revised Mar 05, 2015.]
• David L. Applegate, Hans Havermann, Bob Selcoe, Vladimir Shevelev, N. J. A. Sloane, and Reinhard Zumkeller, The Yellowstone Permutation, Journal of Integer Sequences, Vol. 18 (2015), Article 15.6.7; also arXiv:1501.01669 (JIS, arXiv, on my home page).
• Poster I created to celebrate reaching 250,000 sequences; key to the poster.
• OEIS-50 Conference. On October 9-10 2014 there was a conference at DIMACS, Rutgers University, to celebrate the 50th birthday of the OEIS, reaching 250,000 sequences, and my 75th birthday. Videos of the talks can be seen here
• N. J. A. Sloane, A Note on Modular Partitions and Necklaces; Preprint, 2014 (mentioned in A047996 and A241926). [May 06 2014]
• Claude Elwood Shannon: Miscellaneous Writings, edited by N. J. A. Sloane and A. D. Wyner, 1993, Deposited in The Library of Congress, The British Library, and the libraries of M.I.T., Cornell, Univ. Mich. and AT&T Bell Laboratories. October 15 2013: I have placed a copy on the Internet Archive - see archive.org/details/ShannonMiscellaneousWritings
• N. J. A. Sloane, 2178 And All That, Fibonacci Quarterly, 52 (2014), 99-120. Also arXiv:1307.0453, although the version on my home page may be more up-to-date.
• N. J. A. Sloane, Recent and Noteworthy Sequences in the OEIS. [Dec. 18, 2012]
• N. J. A. Sloane, Recent and Noteworthy Sequences in the OEIS: The Illustrations. [Dec. 18, 2012]
• B. Chaffin, J. P. Linderman, N. J. A. Sloane and A. R. Wilks, On Curling Numbers of Integer Sequences. [Dec. 25, 2012; Mar 12 2013]
• N. J. A. Sloane, The On-Line Encyclopedia of Integer Sequences, Proceedings Fifteenth Conference on Fibonacci Numbers, Eger, Hungary, June 2012, Annales Mathematicae et Informaticae, 41 (2013) pp. 219-234.
• Susanna Cuyler and N. J. A. Sloane, A Simple and Easily-Remembered Method for Solving the Rubik Cube, 2012. (An informal guide for distribution to friends.)
• D. Applegate, M. LeBrun, N. J. A. Sloane, Dismal Arithmetic, J. Int. Seq., 14 (2011), #11.9.8.
• D. Applegate, M. LeBrun, N. J. A. Sloane, Carryless Arithmetic, College Math. J., Vol. 43 (No. 1, 2012), pp. 43-50 (Special issue in honor of Martin Gardner), received 2013 George Polya Award from MAA; also arXiv:1008.4633.
• N. J. A. Sloane, V. A. Vaishampayan, S. I. R. Costa, A Note on Projecting the Cubic Lattice, Discr. Comput. Geom., 46 (No. 3, 2011), 472-478.
• D. Applegate, O. E. Pol, N. J. A. Sloane, The Toothpick Sequence and Other Sequences from Cellular Automata, Congress. Numer., 206 (2010), 157-191.
• D. Applegate, N. J. A. Sloane, The Gift Exchange Problem, arXiv:0907.0513, slightly later version with typo corrected.
• Eight Hateful Sequences, paper for the 8th Gathering for Gardner, revised Sept. 11, 2013 [old version: arXiv:0805.2128].
• N. J. A. Sloane, V. A. Vaishampayan, Generalizations of Schöbi's Tetrahedral Dissection, Discr. Comput. Geom., 41 (No. 2, 2009), 232-248; arXiv:0710.3857.
• C. Tian, V. A. Vaishampayan, N. J. A. Sloane, Constant Weight Codes: A Geometric Approach Based on Dissections, IEEE Trans. Inform. Theory, 55, (No. 3, 2009), 1051-1060; arXiv:0706.1217.
• Seven Staggering Sequences, in Homage to a Pied Puzzler, E. Pegg Jr. et al. (eds.), A. K. Peters, Wellesley, MA, 2009, pp. 93-110; arXiv:0912.2394.