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%I #4 Jun 08 2017 18:21:17
%S 3,6,7,10,13,14,16,17,20,23,24,27,30,31,33,34,37,38,40,41,44,47,48,51,
%T 54,55,57,58,61,64,65,68,71,72,74,75,78,79,81,82,85,88,89,91,92,95,96,
%U 98,99,102,105,106,109,112,113,115,116,119,122,123,126,129
%N Positions of 1 in A288213; complement of A288215.
%C -1 < 2 - a(n)/n < 0 for n >= 1.
%H Clark Kimberling, <a href="/A288215/b288215.txt">Table of n, a(n) for n = 1..10000</a>
%t s = {0, 0}; w[0] = StringJoin[Map[ToString, s]];
%t w[n_] := StringReplace[w[n - 1], {"00" -> "0010", "1" -> "010"}]
%t Table[w[n], {n, 0, 8}]
%t st = ToCharacterCode[w[11]] - 48 (* A288213 *)
%t Flatten[Position[st, 0]] (* A288214 *)
%t Flatten[Position[st, 1]] (* A288215 *)
%Y Cf. A288213, A288214.
%K nonn,easy
%O 1,1
%A _Clark Kimberling_, Jun 07 2017
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