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%I #4 May 17 2017 17:58:17
%S 3,7,12,16,21,25,29,34,38,43,47,51,56,60,65,69,74,78,82,87,91,96,100,
%T 104,109,113,118,122,127,131,135,140,144,149,153,157,162,166,171,175,
%U 179,184,188,193,197,202,206,210,215,219,224,228,232,237,241,246
%N Positions of 0 in A286922; complement of A286924.
%C a(n) - a(n-1) is in {4,5} for n>=2, and a(n)/n -> 3 + sqrt(2).
%H Clark Kimberling, <a href="/A286923/b286923.txt">Table of n, a(n) for n = 1..10000</a>
%e As a word, A286922 = 1101110111101110111101110..., in which 0 is in positions 3,7,12,16....
%t s = Nest[Flatten[# /. {0 -> 1, 1 -> {1, 1, 0}}] &, {1}, 7] (* A080764 *)
%t w = StringJoin[Map[ToString, s]]
%t w1 = StringReplace[w, {"0" -> "01"}]
%t st = ToCharacterCode[w1] - 48 ; (* A286922 *)
%t Flatten[Position[st, 0]]; (* A286923 *)
%t Flatten[Position[st, 1]]; (* A286924 *)
%Y Cf. A080764, A286922, A286924.
%K nonn,easy
%O 1,1
%A _Clark Kimberling_, May 17 2017
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