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 A122320 #5 Mar 31 2012 13:21:12 %S A122320 0,1,2,3,4,5,7,8,6,9,10,11,12,13,17,18,20,21,22,16,14,15,19,23,24,25, %T A122320 26,27,28,29,30,31,32,33,35,36,34,45,46,48,49,50,54,55,57,58,59,61,62, %U A122320 63,64,44,47,42,37,38,43,39,40,41,53,51,56,60,52,65,66,67,68,69,70,71 %N A122320 Row 9 of A122284. %C A122320 The signature-permutation of the automorphism which is derived from the ninth non-recursive automorphism *A089855 with recursion schema NEPEED (see A122284 for the definition). %H A122320 <a href="/index/Per#IntegerPermutationCatAuto">Index entries for signature-permutations of Catalan automorphisms</a> %Y A122320 Inverse: A122319. %K A122320 nonn %O A122320 0,3 %A A122320 _Antti Karttunen_, Sep 01 2006