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%I #4 May 06 2017 19:55:47
%S 1,4,11,14,18,24,31,37,41,44,51,54,58,64,68,71,78,84,91,94,98,104,111,
%T 117,121,124,131,137,144,147,151,157,161,164,171,174,178,184,191,197,
%U 201,204,211,214,218,224,228,231,238,244,251,254,258,264,268,271
%N Positions of 0 in A285978; complement of A285980.
%C Conjecture: a(n)/n -> 5.
%H Clark Kimberling, <a href="/A285979/b285979.txt">Table of n, a(n) for n = 1..10000</a>
%e As a word, A285978 = 0110111111011011101111101..., in which 0 is in positions 1,4,11,14,18,...
%t s = Nest[Flatten[# /. {0 -> {0, 1}, 1 -> {1, 0}}] &, {0}, 9] (* Thue-Morse, A010060 *)
%t w = StringJoin[Map[ToString, s]]
%t w1 = StringReplace[w, {"00" -> "1"}]
%t st = ToCharacterCode[w1] - 48 (* A285978 *)
%t Flatten[Position[st, 0]] (* A285979 *)
%t Flatten[Position[st, 1]] (* A285980 *)
%Y Cf. A010060, A285978, A285980.
%K nonn,easy
%O 1,2
%A _Clark Kimberling_, May 06 2017
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