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 A130394 #5 Mar 31 2012 13:21:16 %S A130394 0,1,3,2,7,8,4,6,5,20,18,21,17,22,10,9,14,19,16,11,15,12,13,55,57,49, %T A130394 61,50,59,62,46,48,54,63,45,58,64,26,27,23,25,24,38,37,51,56,60,42,44, %U A130394 53,47,29,28,39,52,43,30,40,31,32,33,41,34,35,36,167,161,183,162,173 %N A130394 Signature permutation of a Catalan automorphism: row 18 of A130401. %C A130394 The signature-permutation of the Catalan automorphism which is derived from the eighteenth non-recursive Catalan automorphism *A089861 with recursion schema REDRONI (see A130401 for the definition). %H A130394 A. Karttunen, <a href="/A130394/b130394.txt">Table of n, a(n) for n = 0..2055</a> %H A130394 <a href="/index/Per#IntegerPermutationCatAuto">Index entries for signature-permutations of Catalan automorphisms</a> %Y A130394 Inverse: A130393. %K A130394 nonn %O A130394 0,3 %A A130394 _Antti Karttunen_, Jun 11 2007