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 A130952 #5 Mar 31 2012 13:21:16 %S A130952 0,1,2,3,6,4,5,7,8,16,19,14,11,9,15,10,12,20,17,13,18,21,22,44,47,53, %T A130952 56,60,42,51,39,30,33,37,28,25,23,43,52,38,29,24,40,26,32,57,61,34,54, %U A130952 45,46,41,27,31,55,48,35,49,62,58,36,50,59,63,64,128,131,137,140,144 %N A130952 Signature permutation of a Catalan automorphism: row 9 of A130403. %H A130952 A. Karttunen, <a href="/A130952/b130952.txt">Table of n, a(n) for n = 0..2055</a> %H A130952 <a href="/index/Per#IntegerPermutationCatAuto">Index entries for signature-permutations of Catalan automorphisms</a> %Y A130952 Inverse: A130951. %K A130952 nonn %O A130952 0,3 %A A130952 _Antti Karttunen_, Jun 11 2007