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%I #4 Apr 25 2017 11:45:18
%S 2,3,7,11,15,20,21,26,28,29,33,37,42,43,47,51,56,57,61,65,69,74,76,77,
%T 81,85,90,91,95,99,104,105,109,113,117,122,124,125,129,133,138,139,
%U 143,147,152,153,157,161,165,170,172,173,177,181,186,187,191,195
%N Positions of 0 in A285277; complement of A285279.
%C Conjecture: 0 < n*r - a(n) < 6 for n>=1, where r = 2+sqrt(2).
%H Clark Kimberling, <a href="/A285278/b285278.txt">Table of n, a(n) for n = 1..10000</a>
%e As a word, A285277 = 10011101110111..., in which 0 is in positions 2,3,7,11,15,...
%t s = Nest[Flatten[# /. {0 -> {1, 0}, 1 -> {0, 1, 1, 1}}] &, {0}, 9]; (* A285277 *)
%t Flatten[Position[s, 0]]; (* A285278 *)
%t Flatten[Position[s, 1]]; (* A285279 *)
%Y Cf. A285275, A285277, A285279.
%K nonn,easy
%O 1,1
%A _Clark Kimberling_, Apr 25 2017
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