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1, 2, 4, 5, 9, 10, 12, 13, 15, 16, 20, 21, 25, 26, 30, 31, 33, 34, 36, 37, 41, 42, 44, 45, 47, 48, 52, 53, 55, 56, 58, 59, 63, 64, 68, 69, 73, 74, 76, 77, 79, 80, 84, 85, 89, 90, 94, 95, 97, 98, 100, 101, 105, 106, 110, 111, 115, 116, 118, 119, 121, 122, 126
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,2
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LINKS
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FORMULA
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a(n) = 1 + A284392(n-2) for n >= 3.
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MATHEMATICA
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s = Nest[Flatten[# /. {0 -> {1}, 1 -> {0, 0, 1}}] &, {0}, 8]; (* A284388 *)
Flatten[Position[s, 0]]; (* A284389 *)
Flatten[Position[s, 1]]; (* A284390 *)
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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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