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 A126296 #2 Mar 31 2012 13:21:13 %S A126296 1,1,1,3,6,13,30,125,223,719,4866,12916,51495,153945 %N A126296 Maximum cycle size in range [A014137(n-1)..A014138(n-1)] of permutation A125987/A125988. %C A126296 The size of a largest orbit to which the square of Vaille's automorphism partitions the set of A000108(n) Dyck paths of semilength n. %Y A126296 For n>0, it seems that A126292(2n) = 2*a(2n). %K A126296 nonn %O A126296 0,4 %A A126296 _Antti Karttunen_, Jan 02 2007