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0, 1, 2, 2, 3, 2, 2, 3, 4, 4, 3, 4, 4, 5, 6, 4, 5, 2, 2, 3, 2, 3, 4, 4, 4, 5, 6, 5, 6, 6, 4, 5, 6, 6, 3, 4, 4, 5, 6, 5, 4, 5, 6, 6, 7, 5, 5, 6, 6, 7, 8, 4, 5, 5, 4, 5, 6, 5, 5, 6, 4, 5, 6, 6, 7, 6, 6, 7, 4, 5, 6, 6, 6, 7, 8, 6, 7, 7, 6, 7, 6, 7, 8, 8, 9, 4, 4, 5, 6, 6, 4, 5, 5, 6, 7, 6, 6, 7, 8, 7, 8, 8, 4, 5, 6, 4, 4, 5, 4, 5, 6, 6, 7, 7, 6, 7, 7, 8, 9, 6, 4
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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0,3
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COMMENTS
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It seems that the sequence stays strictly positive after a(0).
Only 1 seems to be at a(1).
2's occur in this sequence at least in the following positions: 2, 3, 5, 6, 17, 18, 20, 257, 258, 260, 272, 65537, 65538, 65540, 65552, 65792, and in no other location up to 2^21.
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LINKS
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FORMULA
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PROG
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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