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 A065667 #5 May 01 2014 02:49:15 %S A065667 1,2,3,4,5,6,7,130,9,10,11,12,13,14,15,2053,1087,18,19,20,21,22,23,24, %T A065667 25,26,27,28,29,30,31,65560,8245,133,274,36,37,38,39,40,41,42,43,44, %U A065667 45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,16384,134348800 %N A065667 Permutation of N induced by rotating the node 4 left in the infinite planar binary tree shown at A065658. %H A065667 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %p A065667 [seq(RotateBinFracNodeLeft(4,j),j=1..256)]; %Y A065667 The fourth row of A065659. Inverse of A065666. A065667(n) = A065661(A065663(A065660(n))) %K A065667 nonn %O A065667 1,2 %A A065667 _Antti Karttunen_, Nov 22 2001