%I #4 Apr 21 2017 08:06:23
%S 1,3,5,10,14,15,17,19,21,26,30,31,33,35,37,42,46,47,52,53,58,59,64,65,
%T 67,69,71,76,80,81,86,87,92,93,95,97,99,104,105,107,109,114,118,119,
%U 121,123,125,130,134,135,137,139,141,146,150,151,153,155,157,162
%N Positions of 1 in A285136; complement of A285137.
%C Conjecture: -1 < n*r - a(n) < sqrt(3) for n>=1, where r = 1 + sqrt(3).
%H Clark Kimberling, <a href="/A285138/b285138.txt">Table of n, a(n) for n = 1..10000</a>
%e As a word, A285136 = 10101000010..., in which 1 is in positions 1,3,5,10,...
%t s = Nest[Flatten[# /. {0 -> {1, 0}, 1 -> {0, 0, 0, 1}}] &, {0}, 11]; (* A285136 *)
%t Flatten[Position[s, 0]]; (* A285137 *)
%t Flatten[Position[s, 1]]; (* A285138 *)
%Y Cf. A285133, A285136, A285137.
%K nonn,easy
%O 1,2
%A _Clark Kimberling_, Apr 20 2017
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