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 A065277 #5 May 01 2014 02:42:46 %S A065277 3,1,5,2,9,7,11,4,17,6,19,13,21,15,23,8,33,10,35,12,37,14,39,25,41,27, %T A065277 43,29,45,31,47,16,65,18,67,20,69,22,71,24,73,26,75,28,77,30,79,49,81, %U A065277 51,83,53,85,55,87,57,89,59,91,61,93,63,95,32,129,34,131,36,133,38,135 %N A065277 A065275 conjugated with A059893, inverse of A065278. %H A065277 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %F A065277 a(n) = A059893(A065275(A059893(n))) %K A065277 nonn %O A065277 1,1 %A A065277 _Antti Karttunen_, Oct 28 2001