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1, 3, 7, 8, 11, 12, 15, 16, 17, 19, 21, 25, 26, 29, 30, 33, 34, 35, 39, 40, 41, 45, 46, 47, 49, 51, 55, 56, 59, 60, 61, 63, 67, 68, 71, 72, 75, 76, 77, 81, 82, 83, 85, 87, 91, 92, 95, 96, 97, 99, 103, 104, 107, 108, 111, 112, 113, 117, 118, 119, 121, 123
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OFFSET
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1,2
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COMMENTS
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Conjecture: a(n)/n -> 2.
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LINKS
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EXAMPLE
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As a word, A285142 = 101000110..., in which 1 is in positions 1,3,7,8,11,...
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MATHEMATICA
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s = Nest[Flatten[# /. {0 -> {1, 0}, 1 -> {0, 0, 1, 1}}] &, {0}, 10]; (* A285159 *)
Flatten[Position[s, 0]]; (* A285160 *)
Flatten[Position[s, 1]]; (* A285161 *)
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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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