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 A131006 #5 Mar 31 2012 13:21:16 %S A131006 0,1,3,2,6,8,7,5,4,19,15,14,20,22,16,21,18,11,13,17,12,10,9,52,53,60, %T A131006 39,41,51,40,38,61,55,37,54,62,64,56,43,42,57,63,47,59,48,33,29,50,28, %U A131006 34,36,44,58,49,30,35,46,32,25,27,45,31,26,24,23,155,151,153,179,159 %N A131006 Signature permutation of a Catalan automorphism: row 14 of A122287. %C A131006 Derived from automorphism *A130366 with recursion scheme FORK. %H A131006 A. Karttunen, <a href="/A131006/b131006.txt">Table of n, a(n) for n = 0..2055</a> %H A131006 <a href="/index/Per#IntegerPermutationCatAuto">Index entries for signature-permutations of Catalan automorphisms</a> %Y A131006 Inverse: A131005. %K A131006 nonn %O A131006 0,3 %A A131006 _Antti Karttunen_, Jun 20 2007