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%I #7 Aug 04 2018 10:34:54
%S 1,5,6,9,10,13,14,15,17,21,22,25,26,27,29,33,34,37,38,39,41,43,47,48,
%T 49,53,54,57,58,61,62,63,65,69,70,73,74,75,77,79,83,84,85,89,90,93,94,
%U 97,98,99,101,105,106,109,110,111,113,115,119,120,121,125
%N Positions of 0 in A284935; complement of A284937.
%C Conjecture: a(n) - 2n + 1 is in {0,1,2} for n >= 1.
%H Clark Kimberling, <a href="/A284936/b284936.txt">Table of n, a(n) for n = 1..10000</a>
%e As a word, A284935 = 011100..., in which 0 is in positions 1,5,6,9,10,...
%t s = Nest[Flatten[# /. {0 -> {0, 1}, 1 -> {1, 1, 0, 0}}] &, {0}, 6] (* A284935 *)
%t Flatten[Position[s, 0]] (* A284936 *)
%t Flatten[Position[s, 1]] (* A284937 *)
%Y Cf. A284935, A284937.
%K nonn,easy
%O 1,2
%A _Clark Kimberling_, Apr 18 2017
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