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 A130393 #5 Mar 31 2012 13:21:16 %S A130393 0,1,3,2,6,8,7,4,5,15,14,19,21,22,16,20,18,12,10,17,9,11,13,39,41,40, %T A130393 37,38,52,51,56,58,59,60,62,63,64,43,42,53,57,61,47,55,48,34,30,50,31, %U A130393 25,27,44,54,49,32,23,45,24,35,28,46,26,29,33,36,113,112,117,119,120 %N A130393 Signature permutation of a Catalan automorphism: row 13 of A130400. %C A130393 The signature-permutation of the Catalan automorphism which is derived from the thirteenth non-recursive Catalan automorphism *A089858 with recursion schema INORDER (see A130400 for the definition). %H A130393 A. Karttunen, <a href="/A130393/b130393.txt">Table of n, a(n) for n = 0..2055</a> %H A130393 <a href="/index/Per#IntegerPermutationCatAuto">Index entries for signature-permutations of Catalan automorphisms</a> %Y A130393 Inverse: A130394. %K A130393 nonn %O A130393 0,3 %A A130393 _Antti Karttunen_, Jun 11 2007