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 A073282 #6 Oct 17 2015 08:36:23 %S A073282 0,1,3,2,8,7,5,6,4,22,21,20,18,17,13,12,15,19,16,11,14,10,9,64,63,62, %T A073282 59,58,61,57,55,50,49,54,48,46,45,36,35,34,32,31,41,40,52,60,56,43,53, %U A073282 47,44,33,30,39,51,42,29,38,27,26,28,37,25,24,23,196,195,194,190,189 %N A073282 Permutation of natural numbers induced by the composition of the Catalan bijections A072796 & A057163. %H A073282 A. Karttunen, <a href="http://www.iki.fi/~kartturi/matikka/Nekomorphisms/gatomorf.htm">Gatomorphisms</a> (with the complete Scheme source) %H A073282 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %F A073282 a(n) = A072796(A057163(n)) %Y A073282 Inverse permutation: A073283. Occurs for first time in A073200 as row 13. %K A073282 nonn %O A073282 0,3 %A A073282 _Antti Karttunen_, Jun 25 2002