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 A130987 #5 Mar 31 2012 13:21:16 %S A130987 0,1,2,3,4,5,7,6,8,9,10,11,12,13,17,18,16,14,15,20,21,19,22,23,24,26, %T A130987 25,27,28,29,30,31,32,33,35,34,36,45,46,49,48,50,44,47,42,37,38,43,40, %U A130987 39,41,54,55,57,58,59,53,56,51,52,61,62,63,60,64,65,66,67,68,69,73,74 %N A130987 Signature permutation of a Catalan automorphism: row 8 of A122288. %C A130987 Derived from automorphism *A082339 with recursion scheme KROF. %H A130987 A. Karttunen, <a href="/A130987/b130987.txt">Table of n, a(n) for n = 0..2055</a> %H A130987 <a href="/index/Per#IntegerPermutationCatAuto">Index entries for signature-permutations of Catalan automorphisms</a> %Y A130987 Inverse: A130988. %K A130987 nonn %O A130987 0,3 %A A130987 _Antti Karttunen_, Jun 20 2007