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 A061856 #3 May 01 2014 02:47:11 %S A061856 0,1,2,3,4,7,8,9,11,15,17,21,22,23,30,33,38,45,48,55,58,63,64,65,70, %T A061856 81,86,98,102,108,113,124,129,141,145,153,158,170,174,185,189,195,196, %U A061856 197,216,225,241,260,269,291,300,318,323,330,349,358,374,393,402,424,433 %N A061856 The positions of the terms of A061855 in the sequence A014486, terms fixed by the permutation A057164. %p A061856 map(CatalanRankGlobal, A061855); %Y A061856 Cf. A061855, A057164, A057117 (CatalanRankGlobal) %K A061856 nonn %O A061856 0,3 %A A061856 _Antti Karttunen_, May 11 2001