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 A082327 #6 Oct 15 2015 10:55:24 %S A082327 0,1,3,2,4,8,9,7,5,6,12,10,11,13,22,23,26,25,27,21,24,19,14,15,20,17, %T A082327 16,18,35,36,33,28,29,34,30,31,32,40,37,38,39,41,64,65,68,67,69,77,78, %U A082327 76,73,74,82,80,81,83,63,66,75,72,79,61,70,56,42,43,57,45,44,46 %N A082327 Permutation of natural numbers induced by the contraction of Catalan bijection signature-permutation A082325. %H A082327 A. Karttunen, <a href="http://www.iki.fi/~kartturi/matikka/Nekomorphisms/gatomorf.htm">Gatomorphisms</a> (with the complete Scheme source) %H A082327 <a href="/index/Per#IntegerPermutationCatAuto">Index entries for signature-permutations induced by Catalan automorphisms</a> %F A082327 a(n) = A082853(A082325(A081291(n))). %Y A082327 Inverse of A082328. a(n) = A072798(A082328(A072798(n))). Cf. also A082329-A082330. %K A082327 nonn %O A082327 0,3 %A A082327 _Antti Karttunen_, Apr 17 2003