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%I #4 Apr 16 2017 00:14:19
%S 1,3,5,6,7,9,11,12,13,15,17,19,21,22,23,25,27,28,29,31,33,35,37,38,39,
%T 41,43,44,45,47,49,50,51,53,55,56,57,59,61,63,65,66,67,69,71,72,73,75,
%U 77,79,81,82,83,85,87,88,89,91,93,94,95,97,99,100,101
%N Positions of 0 in A284851; complement of A284853.
%C Conjecture: -2 < n*r - a(n) < 2 for n >= 1, where r = (3+sqrt(3))/3.
%H Clark Kimberling, <a href="/A284852/b284852.txt">Table of n, a(n) for n = 1..10000</a>
%e As a word, A284851 = 010100..., in which 0 is in positions 1,3,5,6,...
%t s = Nest[Flatten[# /. {0 -> {0, 1}, 1 -> {0, 1, 0, 0}}] &, {0}, 6] (* A284851 *)
%t Flatten[Position[s, 0]] (* A284852 *)
%t Flatten[Position[s, 1]] (* A284853 *)
%Y Cf. A284851, A284853.
%K nonn,easy
%O 1,2
%A _Clark Kimberling_, Apr 15 2017
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