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3, 4, 6, 10, 11, 13, 15, 16, 18, 19, 20, 22, 25, 26, 28, 30, 31, 33, 36, 37, 39, 43, 44, 46, 50, 51, 53, 55, 56, 58, 59, 60, 62, 65, 66, 68, 70, 71, 73, 76, 77, 79, 81, 82, 84, 85, 86, 88, 91, 92, 94, 96, 97, 99, 100, 101, 103, 104, 105, 107, 110, 111, 113
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OFFSET
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1,1
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COMMENTS
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Conjecture: a(n)/n -> (7 + sqrt(13))/6.
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LINKS
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MATHEMATICA
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s = Nest[Flatten[# /. {0 -> {1}, 1 -> {0, 0, 1, 0}}] &, {0}, 9] (* A284527 *)
Flatten[Position[s, 0]] (* A284528 *)
Flatten[Position[s, 1]] (* A284529 *)
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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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