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 A130397 #5 Mar 31 2012 13:21:16 %S A130397 0,1,3,2,8,7,6,4,5,21,22,20,17,18,19,16,14,10,9,15,11,13,12,58,59,62, %T A130397 63,64,57,61,54,45,46,55,48,49,50,56,60,53,44,47,51,42,38,27,26,37,25, %U A130397 24,23,52,43,39,29,28,41,33,36,35,40,30,34,32,31,170,171,174,175,176 %N A130397 Signature permutation of a Catalan automorphism: row 15 of A130400. %C A130397 The signature-permutation of the Catalan automorphism which is derived from the 15th non-recursive Catalan automorphism *A089859 with recursion schema INORDER (see A130400 for the definition). %H A130397 A. Karttunen, <a href="/A130397/b130397.txt">Table of n, a(n) for n = 0..2055</a> %H A130397 <a href="/index/Per#IntegerPermutationCatAuto">Index entries for signature-permutations of Catalan automorphisms</a> %Y A130397 Inverse: A130398. %K A130397 nonn %O A130397 0,3 %A A130397 _Antti Karttunen_, Jun 11 2007