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1, 4, 11, 14, 18, 24, 31, 37, 41, 44, 51, 54, 58, 64, 68, 71, 78, 84, 91, 94, 98, 104, 111, 117, 121, 124, 131, 137, 144, 147, 151, 157, 161, 164, 171, 174, 178, 184, 191, 197, 201, 204, 211, 214, 218, 224, 228, 231, 238, 244, 251, 254, 258, 264, 268, 271
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listen;
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internal format)
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OFFSET
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1,2
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COMMENTS
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Conjecture: a(n)/n -> 5.
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LINKS
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EXAMPLE
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As a word, A285978 = 0110111111011011101111101..., in which 0 is in positions 1,4,11,14,18,...
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MATHEMATICA
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s = Nest[Flatten[# /. {0 -> {0, 1}, 1 -> {1, 0}}] &, {0}, 9] (* Thue-Morse, A010060 *)
w = StringJoin[Map[ToString, s]]
w1 = StringReplace[w, {"00" -> "1"}]
st = ToCharacterCode[w1] - 48 (* A285978 *)
Flatten[Position[st, 0]] (* A285979 *)
Flatten[Position[st, 1]] (* A285980 *)
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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STATUS
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approved
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