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1, 4, 5, 6, 7, 10, 11, 14, 15, 18, 19, 22, 23, 24, 25, 28, 29, 32, 33, 34, 35, 38, 39, 42, 43, 44, 45, 48, 49, 52, 53, 54, 55, 58, 59, 62, 63, 66, 67, 70, 71, 72, 73, 76, 77, 80, 81, 82, 83, 86, 87, 90, 91, 94, 95, 98, 99, 100, 101, 104, 105, 108, 109, 110
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refs;
listen;
history;
text;
internal format)
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OFFSET
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1,2
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COMMENTS
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Conjecture: -2 < n*sqrt(3) < 3 for n >= 1.
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LINKS
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EXAMPLE
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The first 10 letters of the word in A284369 are 1001111001, in which the positions of 1 are 1,4,5,6,7,10.
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MATHEMATICA
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s = Nest[Flatten[# /. {0 -> {1}, 1 -> {1, 0, 0, 1}}] &, {0}, 9]; (* A284369 *)
Flatten[Position[s, 0]]; (* A284370 *)
Flatten[Position[s, 1]]; (* A284371 *)
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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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