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 A288134 #4 Jun 07 2017 19:14:59 %S A288134 3,5,6,8,9,10,11,13,14,15,16,17,18,19,20,22,23,24,25,26,27,28,29,30, %T A288134 31,32,33,34,35,36,37,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54, %U A288134 55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,72,73,74 %N A288134 Positions of 1 in A288132; complement of A288133. %C A288134 a(n+1)/a(n) -> 1. %H A288134 Clark Kimberling, <a href="/A288134/b288134.txt">Table of n, a(n) for n = 1..10000</a> %t A288134 s = {0, 0}; w[0] = StringJoin[Map[ToString, s]]; %t A288134 w[n_] := StringReplace[w[n - 1], {"00" -> "0010", "1" -> "11"}] %t A288134 Table[w[n], {n, 0, 8}] %t A288134 st = ToCharacterCode[w[11]] - 48 (* A288132 *) %t A288134 Flatten[Position[st, 0]] (* A288133 *) %t A288134 Flatten[Position[st, 1]] (* A288134 *) %Y A288134 Cf. A288132, A288133. %K A288134 nonn,easy %O A288134 1,1 %A A288134 _Clark Kimberling_, Jun 07 2017