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 A131163 #5 Mar 31 2012 13:21:17 %S A131163 0,1,3,2,8,7,5,6,4,22,21,18,20,17,13,12,15,16,19,10,14,11,9,64,63,59, %T A131163 62,58,50,49,55,57,61,46,54,48,45,36,35,32,34,31,41,40,43,44,47,52,53, %U A131163 56,60,27,26,38,42,51,29,39,30,33,24,37,28,25,23,196,195,190,194,189 %N A131163 Signature permutation of a Catalan automorphism: row 18 of A122285. %C A131163 Derived from automorphism *A130363 with recursion scheme ENIPS. %H A131163 A. Karttunen, <a href="/A131163/b131163.txt">Table of n, a(n) for n = 0..2055</a> %H A131163 <a href="/index/Per#IntegerPermutationCatAuto">Index entries for signature-permutations of Catalan automorphisms</a> %Y A131163 Inverse: A131164. %K A131163 nonn %O A131163 0,3 %A A131163 _Antti Karttunen_, Jun 20 2007