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 A126292 #2 Mar 31 2012 13:21:13 %S A126292 1,1,2,3,12,20,60,126,446,1438,9732,25832,102990,306732 %N A126292 Maximum cycle size in range [A014137(n-1)..A014138(n-1)] of permutation A125985/A125986. %C A126292 The size of a largest orbit to which Vaille's automorphism partitions the set of A000108(n) Dyck paths of semilength n. %Y A126292 For n>0, it seems that a(2n) = 2*A126296(2n). %K A126292 nonn %O A126292 0,3 %A A126292 _Antti Karttunen_, Jan 02 2007