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 A106452 #8 Jul 11 2015 10:23:17 %S A106452 0,1,2,3,6,5,4,7,15,10,13,8,11,23,20,9,14,127,63,16,31,255,65535,12, %T A106452 21,28,27,55,48,17,26,191,95,44,47,383,98303,68,41,62,19,39,106,29, %U A106452 254,2047,16383,84,511,4095,16777215,272,33,50,2097151,1023,256,32767 %N A106452 Position of A014486(n) in A106455, minus one. %C A106452 See A106456. The next term, a(58) = 340282366920938463463374607431768211455 = (2^128) - 1 as A063171(58) = 1110101000, 11010100 = A063171(17), a(17)=127 and 127+1 = 128. %H A106452 A. Karttunen, <a href="/A091247/a091247.scm.txt">Scheme-program for computing this sequence.</a> %H A106452 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %Y A106452 Inverse: A106451. a(n) = A106454(n+1)-1. GF(2)[X]-analog of A075162. %K A106452 nonn %O A106452 0,3 %A A106452 _Antti Karttunen_, May 09 2005