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 A131007 #5 Mar 31 2012 13:21:16 %S A131007 0,1,3,2,8,7,4,5,6,22,21,17,18,20,10,11,9,13,12,14,16,19,15,64,63,58, %T A131007 59,62,46,48,45,50,49,54,57,61,55,27,26,30,33,29,23,28,24,36,35,25,31, %U A131007 32,34,38,39,42,47,53,51,44,60,56,37,43,40,41,52,196,195,189,190,194 %N A131007 Signature permutation of a Catalan automorphism: row 20 of A122288. %C A131007 Derived from automorphism *A130367 with recursion scheme KROF. %H A131007 A. Karttunen, <a href="/A131007/b131007.txt">Table of n, a(n) for n = 0..2055</a> %H A131007 <a href="/index/Per#IntegerPermutationCatAuto">Index entries for signature-permutations of Catalan automorphisms</a> %Y A131007 Inverse: A131008. %K A131007 nonn %O A131007 0,3 %A A131007 _Antti Karttunen_, Jun 20 2007