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 A130992 #5 Mar 31 2012 13:21:16 %S A130992 0,1,2,3,4,5,8,7,6,9,10,11,12,13,21,20,22,17,18,19,16,14,15,23,24,27, %T A130992 26,25,28,29,30,31,32,33,36,35,34,58,59,55,54,57,64,61,63,45,46,62,48, %U A130992 49,50,56,53,60,44,47,51,42,37,38,52,43,41,40,39,65,66,67,68,69,77,76 %N A130992 Signature permutation of a Catalan automorphism: row 10 of A122287. %C A130992 Derived from automorphism *A130352 with recursion scheme FORK. %H A130992 A. Karttunen, <a href="/A130992/b130992.txt">Table of n, a(n) for n = 0..2055</a> %H A130992 <a href="/index/Per#IntegerPermutationCatAuto">Index entries for signature-permutations of Catalan automorphisms</a> %Y A130992 Inverse: A130991. %K A130992 nonn %O A130992 0,3 %A A130992 _Antti Karttunen_, Jun 20 2007