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A075999
Product{[n/k + 1/2]: k=1,2,...,n}, where [x + 1/2] denotes the integer nearest to x.
1
1, 2, 6, 8, 30, 72, 112, 384, 1080, 1800, 6336, 13824, 26208, 94080, 345600, 368640, 1057536, 5598720, 6566400, 24192000, 74511360, 93671424, 457850880, 955514880, 2156544000, 5887365120, 16460236800, 40967700480, 101025792000
OFFSET
1,2
EXAMPLE
a(6) = 6*3*2*2*1*1 = 72.
MATHEMATICA
Table[Product[Floor[n/k+1/2], {k, n}], {n, 30}] (* Harvey P. Dale, Feb 15 2015 *)
CROSSREFS
Cf. A075998 (product of second-nearest integers), A010786 (product of [n/k], k=1, 2, ..., n).
Sequence in context: A053287 A086323 A336618 * A096999 A019199 A094678
KEYWORD
nonn
AUTHOR
Clark Kimberling, Sep 29 2002
STATUS
approved