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 A130951 #7 May 07 2021 13:20:33 %S A130951 0,1,2,3,5,6,4,7,8,13,15,12,16,19,11,14,9,18,20,10,17,21,22,36,41,35, %T A130951 43,52,34,40,31,53,44,32,47,56,60,33,39,30,42,51,28,37,23,49,50,24,55, %U A130951 57,61,29,38,25,48,54,26,45,59,62,27,46,58,63,64,106,120,105,125,153 %N A130951 Signature permutation of a Catalan automorphism: row 11 of A130402. %H A130951 A. Karttunen, <a href="/A130951/b130951.txt">Table of n, a(n) for n = 0..2055</a> %H A130951 <a href="/index/Per#IntegerPermutationCatAuto">Index entries for signature-permutations of Catalan automorphisms</a> %Y A130951 Cf. A130402. %Y A130951 Inverse: A130952. %K A130951 nonn %O A130951 0,3 %A A130951 _Antti Karttunen_, Jun 11 2007