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 A065640 #6 May 01 2014 02:49:14 %S A065640 1,2,3,4,5,6,7,16,9,10,11,12,13,14,15,32,8,18,19,20,21,22,23,24,25,26, %T A065640 27,28,29,30,31,64,65,33,17,36,37,38,39,40,41,42,43,44,45,46,47,48,49, %U A065640 50,51,52,53,54,55,56,57,58,59,60,61,62,63,128,129,130,131,66,67,34,35,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92 %N A065640 Permutation of N induced by rotating the node 8 left in the infinite planar binary tree. The eighth row of A065626. Inverse of A065639. %H A065640 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %p A065640 [seq(RotateNodeLeft(8,j),j=1..120)]; %Y A065640 A065640[n] = A057115[A065632[A057114[n]]] = A057115[A057115[A065628[A057114[A057114[n]]]]] %K A065640 nonn %O A065640 1,2 %A A065640 _Antti Karttunen_, Nov 08 2001