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 A130390 #5 Mar 31 2012 13:21:14 %S A130390 0,1,2,3,4,5,8,7,6,9,10,13,12,11,21,20,22,17,18,19,16,14,15,23,24,27, %T A130390 26,25,35,34,36,31,32,33,30,28,29,58,59,55,54,57,64,61,63,45,46,62,50, %U A130390 49,48,56,53,60,44,47,51,42,37,38,52,43,39,40,41,65,66,69,68,67,77,76 %N A130390 Signature permutation of a Catalan automorphism: row 10 of A130401. %C A130390 The signature-permutation of the Catalan automorphism which is derived from the tenth non-recursive Catalan automorphism *A089856 with recursion schema REDRONI (see A130401 for the definition). %H A130390 A. Karttunen, <a href="/A130390/b130390.txt">Table of n, a(n) for n = 0..2055</a> %H A130390 <a href="/index/Per#IntegerPermutationCatAuto">Index entries for signature-permutations of Catalan automorphisms</a> %Y A130390 Inverse: A130389. %K A130390 nonn %O A130390 0,3 %A A130390 _Antti Karttunen_, Jun 11 2007