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 A122300 #6 Mar 31 2012 13:21:12 %S A122300 0,1,2,3,4,6,5,7,8,9,10,14,16,19,11,15,12,17,20,13,18,21,22,23,24,25, %T A122300 26,27,37,38,42,44,53,51,47,56,60,28,29,39,43,52,30,40,31,45,46,34,54, %U A122300 57,61,33,41,32,48,55,35,49,58,62,36,50,59,63,64,65,66,67,68,69,70,71 %N A122300 Row 2 of A122283 and A122284. An involution of nonnegative integers. %C A122300 The signature-permutation of the automorphism which is derived from the second non-recursive automorphism *A072796 either with recursion schema DEEPEN or NEPEED. (see A122283, A122284 for their definitions). %H A122300 <a href="/index/Per#IntegerPermutationCatAuto">Index entries for signature-permutations of Catalan automorphisms</a> %Y A122300 A057163(n) = A083927(A122300(A057123(n))). %K A122300 nonn %O A122300 0,3 %A A122300 _Antti Karttunen_, Sep 01 2006