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A007806 Integer part of sum from i=1 to n of (n choose i) * (n/i)^i. +0
1
1, 5, 16, 50, 147, 422, 1210, 3459, 9878, 28189, 80425, 229411, 654311, 1866003, 5321194, 15173321, 43264523, 123357771, 351712022, 1002758190, 2858875748, 8150529454, 23236408366, 66243882238, 188849982251, 538372895393 (list; graph; listen)
OFFSET

1,2

MAPLE

f := proc(n) local i; floor(sum(binomial(n, i)*(n/i)^i, i = 1 .. n)) end

CROSSREFS

Sequence in context: A037536 A082001 A084356 this_sequence A037480 A027108 A077840

Adjacent sequences: A007803 A007804 A007805 this_sequence A007807 A007808 A007809

KEYWORD

nonn

AUTHOR

Joseph Lavinus Ganley [ ganley(AT)virginia.edu ]

EXTENSIONS

Description corrected 6/95.

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Last modified July 4 01:34 EDT 2008. Contains 140787 sequences.


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