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 A130396 #5 Mar 31 2012 13:21:16 %S A130396 0,1,3,2,7,8,5,4,6,17,20,22,21,18,13,12,11,9,10,15,14,19,16,45,54,57, %T A130396 61,46,59,63,64,58,62,49,50,55,48,35,36,32,31,34,33,30,28,23,24,29,25, %U A130396 26,27,41,40,39,37,38,52,51,56,60,43,42,47,44,53,129,157,180,166,130 %N A130396 Signature permutation of a Catalan automorphism: row 19 of A130401. %C A130396 The signature-permutation of the Catalan automorphism which is derived from the nineteenth non-recursive Catalan automorphism *A073270 with recursion schema REDRONI (see A130401 for the definition). %H A130396 A. Karttunen, <a href="/A130396/b130396.txt">Table of n, a(n) for n = 0..2055</a> %H A130396 <a href="/index/Per#IntegerPermutationCatAuto">Index entries for signature-permutations of Catalan automorphisms</a> %Y A130396 Inverse: A130395. %K A130396 nonn %O A130396 0,3 %A A130396 _Antti Karttunen_, Jun 11 2007