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1, 2, 4, 5, 7, 8, 11, 12, 14, 16, 18, 19, 22, 25, 28, 29, 31, 33, 35, 37, 39, 41, 43, 44, 47, 50, 53, 56, 59, 62, 65, 66, 68, 70, 72, 74, 76, 78, 80, 82, 84, 86, 88, 90, 92, 94, 96, 97, 100, 103, 106, 109, 112, 115, 118, 121, 124, 127, 130, 133, 136, 139
(list;
graph;
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: a(n)/n -> 5/2..., and 0 < 5/2 - a(n)/n < 3/2 for n >= 1.
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LINKS
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MATHEMATICA
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z = 11; (* number of iterates *)
s = {0, 0}; w[0] = StringJoin[Map[ToString, s]];
w[n_] := StringReplace[w[n - 1], {"00" -> "0010", "01" -> "011", "10" -> "010"}]
TableForm[Table[w[n], {n, 0, 10}]]
st = ToCharacterCode[w[z]] - 48 (* A289128 *)
Flatten[Position[st, 0]] (* A289129 *)
Flatten[Position[st, 1]] (* A289130 *)
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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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