%I #4 Apr 15 2017 09:12:16
%S 1,3,4,6,7,9,11,12,14,15,17,19,20,22,23,25,26,28,29,31,33,34,36,37,39,
%T 41,42,44,45,47,48,50,51,53,55,56,58,59,61,63,64,66,67,69,71,72,74,75,
%U 77,79,80,82,83,85,86,88,89,91,93,94,96,97,99,101,102
%N Positions of 0 in A284772; complement of A284774.
%C Conjecture: 1 < n*r  a(n) < 2 for n >= 1, where r = (3+sqrt(3))/3.
%H Clark Kimberling, <a href="/A284773/b284773.txt">Table of n, a(n) for n = 1..10000</a>
%e As a word, A284772 = 010010..., in which 0 is in positions 1,3,4,6,...
%t s = Nest[Flatten[# /. {0 > {0, 1}, 1 > {0, 0, 1, 0}}] &, {0}, 6] (* A284772 *)
%t Flatten[Position[s, 0]] (* A284773 *)
%t Flatten[Position[s, 1]] (* A284774 *)
%Y Cf. A284772, A284774.
%K nonn,easy
%O 1,2
%A _Clark Kimberling_, Apr 14 2017
