%I #4 Jun 15 2017 17:56:04
%S 6,7,14,15,18,19,22,23,26,35,36,43,44,47,48,51,52,55,60,61,64,65,68,
%T 73,74,77,78,81,86,91,100,101,108,109,116,117,120,121,124,125,128,137,
%U 138,145,146,149,150,153,154,157,162,163,166,167,170,175,176,179
%N Positions of 1 in A288665; complement of A288666.
%C Conjecture: a(n)/n->3.93..., and if m denotes this number, then -3 < m - a(n)/n) < 1 for n >= 1.
%H Clark Kimberling, <a href="/A288667/b288667.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" -> "0110", "10" -> "000"}]
%t Table[w[n], {n, 0, 8}]
%t st = ToCharacterCode[w[9]] - 48 (* A288665 *)
%t Flatten[Position[st, 0]] (* A288666 *)
%t Flatten[Position[st, 1]] (* A288667 *)
%Y Cf. A288665, A288666.
%K nonn,easy
%O 1,1
%A _Clark Kimberling_, Jun 15 2017
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