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 A065631 #6 May 01 2014 02:49:13 %S A065631 1,2,3,9,5,6,7,4,19,10,11,12,13,14,15,8,18,38,39,20,21,22,23,24,25,26, %T A065631 27,28,29,30,31,16,17,36,37,76,77,78,79,40,41,42,43,44,45,46,47,48,49, %U A065631 50,51,52,53,54,55,56,57,58,59,60,61,62,63,32,33,34,35,72,73,74,75,152,153,154,155,156,157,158,159,80,81,82,83,84,85,86,87,88,89,90,91 %N A065631 Permutation of N induced by rotating the node 4 right in the infinite planar binary tree. The fourth row of A065625. Inverse of A065632. %H A065631 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %p A065631 [seq(RotateNodeRight(4,j),j=1..120)]; %Y A065631 A065631[n] = A057115[A065627[A057114[n]]] %K A065631 nonn %O A065631 1,2 %A A065631 _Antti Karttunen_, Nov 08 2001