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2, 5, 6, 8, 10, 13, 14, 17, 18, 20, 23, 24, 26, 29, 30, 32, 34, 37, 38, 41, 42, 44, 46, 49, 50, 53, 54, 56, 59, 60, 62, 64, 67, 68, 71, 72, 74, 77, 78, 80, 82, 85, 86, 89, 90, 92, 95, 96, 98, 101, 102, 104, 106, 109, 110, 113, 114, 116, 118, 121, 122, 125
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,1
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COMMENTS
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a(n)-2n is in {0,1} for n>=1.
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LINKS
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EXAMPLE
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As a word, A284775 = 0100110..., in which 0 is in positions 2,5,6,8,...
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MATHEMATICA
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s = Nest[Flatten[# /. {0 -> {0, 1}, 1 -> {0, 0, 1, 1}}] &, {0}, 7]; (* A284775 *)
Flatten[Position[s, 0]]; (* A284776 *)
Flatten[Position[s, 1]]; (* A284777 *)
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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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