This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A067607 #51 Feb 16 2025 08:32:45 %S A067607 1,1,1,3,20,2,35,455,5804,73232,6,167,2001,24974,339220,4646117, %T A067607 65758725 %N A067607 Number of stacks of n pancakes requiring a maximum number of flips to order. %C A067607 a(n) is the last term in row n in A092113. - _Joerg Arndt_, Mar 01 2023 %C A067607 a(18) >= 12357059, a(19) >= 410 from J. Cibulka's webpage. - _Dan Dima_, Feb 19 2024 %H A067607 Josef Cibulka, <a href="https://arxiv.org/abs/0901.3119">Average number of flips in pancake sorting</a>, arXiv:0901.3119 [cs.DM], 2009. %H A067607 Josef Cibulka, <a href="https://doi.org/10.1016/j.tcs.2010.11.028">On average and highest number of flips in pancake sorting</a>, Theoretical Computer Science, Volume 412, Issue 8-10, March 2011, pp 822-834. %H A067607 Josef Cibulka, <a href="https://iuuk.mff.cuni.cz/~cibulka/pancakes/">Pancake sorting</a>, webpage. %H A067607 Mohammad Hossain Heydari and Ivan Hal Sudborough, <a href="https://doi.org/10.1006/jagm.1997.0874">On the Diameter of the Pancake Network</a>, Journal of Algorithms, Volume 25, Issue 1 Oct. 1997, pp. 67-94. %H A067607 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/PancakeSorting.html">Pancake Sorting</a>. %H A067607 Wikipedia, <a href="https://en.wikipedia.org/wiki/Pancake_sorting">Pancake sorting</a>. %Y A067607 Cf. A058986, A092113. %K A067607 nonn,hard,more %O A067607 1,4 %A A067607 _Eric W. Weisstein_ %E A067607 Corrected and extended by _Rob Pratt_, Feb 21 2004 %E A067607 a(11)-a(12) from _Sean A. Irvine_, Dec 23 2023 %E A067607 a(13)-a(17) from _Dan Dima_, Feb 10 2024