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 A065289 #5 May 01 2014 02:42:47 %S A065289 3,1,7,2,13,5,15,4,25,6,27,9,29,11,31,8,49,10,51,12,53,14,55,17,57,19, %T A065289 59,21,61,23,63,16,97,18,99,20,101,22,103,24,105,26,107,28,109,30,111, %U A065289 33,113,35,115,37,117,39,119,41,121,43,123,45,125,47,127,32,193,34,195 %N A065289 A065287 conjugated with A059893, inverse of A065290. %H A065289 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %F A065289 a(n) = A059893(A065287(A059893(n))) %K A065289 nonn %O A065289 1,1 %A A065289 _Antti Karttunen_, Oct 28 2001