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1, 4, 5, 6, 8, 9, 10, 12, 13, 14, 16, 17, 18, 19, 22, 23, 24, 25, 27, 30, 31, 32, 34, 35, 36, 38, 39, 40, 41, 44, 45, 46, 48, 49, 50, 52, 53, 54, 55, 58, 59, 60, 62, 63, 64, 66, 67, 68, 70, 71, 72, 73, 75, 78, 79, 80, 82, 83, 84, 86, 87, 88, 89, 92, 93, 94
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OFFSET
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1,2
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COMMENTS
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Conjecture: 0 < n*r - a(n) < 6 for n>=1, where r = 2+sqrt(2).
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LINKS
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EXAMPLE
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As a word, A285277 = 10011101110111..., in which 1 is in positions 1,4,5,6,8,...
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MATHEMATICA
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s = Nest[Flatten[# /. {0 -> {1, 0}, 1 -> {0, 1, 1, 1}}] &, {0}, 9]; (* A285277 *)
Flatten[Position[s, 0]]; (* A285278 *)
Flatten[Position[s, 1]]; (* A285279 *)
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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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