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A066979
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a(n) = floor(n!/2^n).
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3
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0, 0, 0, 1, 3, 11, 39, 157, 708, 3543, 19490, 116943, 760134, 5320940, 39907054, 319256437, 2713679718, 24423117468, 232019615953, 2320196159531, 24362059675078, 267982656425859, 3081800548897382, 36981606586768593
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,5
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LINKS
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MATHEMATICA
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PROG
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(PARI) { for (n=1, 150, write("b066979.txt", n, " ", floor(n!/2^n)) ) } \\ Harry J. Smith, Apr 14 2010
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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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