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 A070041 #6 May 01 2014 02:46:54 %S A070041 1,2,5,3,4,11,12,13,6,7,14,10,8,9,29,30,33,31,32,36,37,34,15,16,35,19, %T A070041 17,18,40,41,42,25,26,38,27,20,21,39,28,24,22,23,85,86,89,87,88,95,96, %U A070041 97,90,91,98,94,92,93,104,105,112,108,109,106,110,99,43,44,100,47,45 %N A070041 Permutation of natural numbers induced by the automorphism df->bf (from the depth-first to breadth-first encoding) acting on the rooted planar binary trees encoded by A014486. (with one-based indexing). %H A070041 A. Karttunen, <a href="/A070041/b070041.txt">Table of n, a(n) for n = 1..1430</a> %H A070041 A. Karttunen, <a href="http://www.iki.fi/~kartturi/matikka/Nekomorphisms/gatomorf.htm">Gatomorphisms</a> (Includes the complete Scheme program for computing this sequence) %H A070041 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %Y A070041 Compare to the plot of A082363 and A072620. %Y A070041 Inverse of A038776. Cf. also A057118. %K A070041 nonn %O A070041 1,2 %A A070041 _Antti Karttunen_, Apr 16 2002