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 A131164 #5 Mar 31 2012 13:21:17 %S A131164 0,1,3,2,8,6,7,5,4,22,19,21,15,14,20,16,17,13,11,18,12,10,9,64,60,63, %T A131164 52,51,62,56,58,41,39,59,40,38,37,61,53,57,43,42,54,44,45,36,33,46,35, %U A131164 29,28,55,47,48,34,30,49,31,27,25,50,32,26,24,23,196,191,195,178,177 %N A131164 Signature permutation of a Catalan automorphism: row 13 of A122286. %C A131164 Derived from automorphism *A130364 with recursion scheme SPINE. %H A131164 A. Karttunen, <a href="/A131164/b131164.txt">Table of n, a(n) for n = 0..2055</a> %H A131164 <a href="/index/Per#IntegerPermutationCatAuto">Index entries for signature-permutations of Catalan automorphisms</a> %Y A131164 Inverse: A131163. %K A131164 nonn %O A131164 0,3 %A A131164 _Antti Karttunen_, Jun 20 2007