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 A131005 #5 Mar 31 2012 13:21:16 %S A131005 0,1,3,2,8,7,4,6,5,22,21,17,20,18,11,10,14,19,16,9,12,15,13,64,63,58, %T A131005 62,59,48,46,54,61,57,45,49,55,50,33,30,26,29,27,39,38,51,60,56,42,44, %U A131005 53,47,28,23,24,34,32,37,40,52,43,25,31,35,41,36,196,195,189,194,190 %N A131005 Signature permutation of a Catalan automorphism: row 19 of A122288. %C A131005 Derived from automorphism *A130365 with recursion scheme KROF. %H A131005 A. Karttunen, <a href="/A131005/b131005.txt">Table of n, a(n) for n = 0..2055</a> %H A131005 <a href="/index/Per#IntegerPermutationCatAuto">Index entries for signature-permutations of Catalan automorphisms</a> %Y A131005 Inverse: A131006. %K A131005 nonn %O A131005 0,3 %A A131005 _Antti Karttunen_, Jun 20 2007