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 A263454 #12 Nov 01 2015 05:08:23 %S A263454 1,0,1,2,1,5,1,6,10,8,13,18,20,34,27,48,55,76,76,113,132,173,193,253, %T A263454 296,394,440,558,657,860,943,1212,1410,1755,2070 %N A263454 Number of starting positions of misère Kayles with n pieces such that the 2nd player can win (P-positions). %H A263454 Wikipedia, <a href="https://en.wikipedia.org/wiki/Kayles">Kayles</a> %e A263454 For n = 6 the a(6) = 5 P-positions are (5,1), (4,1,1), (3,3), (3,2,1), and (2,2,1,1). %Y A263454 Cf. A048833, A263453. %K A263454 nonn,more %O A263454 1,4 %A A263454 _Brian Hopkins_, Oct 18 2015