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 A085168 #7 Mar 31 2012 14:02:19 %S A085168 0,1,3,2,7,4,8,6,5,17,9,18,14,10,20,11,21,16,12,22,19,15,13,45,23,46, %T A085168 37,24,48,25,49,42,26,50,51,38,27,54,28,55,39,29,57,30,58,44,31,59,47, %U A085168 40,32,61,33,62,53,34,63,56,43,35,64,60,52,41,36,129,65,130,107,66 %N A085168 Inverse permutation to A085167. %H A085168 A. Karttunen, <a href="http://www.iki.fi/~kartturi/matikka/Nekomorphisms/gatomorf.htm">Gatomorphisms</a> (With the complete Scheme source) %H A085168 <a href="/index/Per#IntegerPermutationCatAuto">Index entries for signature-permutations induced by Catalan automorphisms</a> %Y A085168 Inverse: A085167. a(n) = A069770(A085160(n)). Occurs in A073200. Cf. also A074679, A074680, A085203. %K A085168 nonn %O A085168 0,3 %A A085168 _Antti Karttunen_, Jun 23 2003