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2, 4, 6, 7, 8, 9, 11, 13, 15, 17, 18, 19, 20, 22, 24, 26, 28, 29, 30, 31, 33, 34, 35, 36, 38, 39, 40, 41, 43, 44, 45, 46, 48, 50, 52, 54, 55, 56, 57, 59, 61, 63, 65, 66, 67, 68, 70, 72, 74, 76, 77, 78, 79, 81, 83, 85, 87, 88, 89, 90, 92, 93, 94, 95, 97, 98
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OFFSET
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1,1
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COMMENTS
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Conjecture: a(n)/n -> (5 + sqrt(13))/6.
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LINKS
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EXAMPLE
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As a word, A284957 = 10101000010..., in which 0 is in positions 2,4,6,7,8,9,...
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MATHEMATICA
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s = Nest[Flatten[# /. {0 -> {1, 0}, 1 -> {0, 0, 0}}] &, {0}, 9]; (* A284957 *)
Flatten[Position[s, 0]]; (* A284958 *)
Flatten[Position[s, 1]]; (* A284959 *)
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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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