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A293140 E.g.f.: Product_{m>0} (1-x^m). 2
1, -1, -2, 0, 0, 120, 0, 5040, 0, 0, 0, 0, -479001600, 0, 0, -1307674368000, 0, 0, 0, 0, 0, 0, 1124000727777607680000, 0, 0, 0, 403291461126605635584000000, 0, 0, 0, 0, 0, 0, 0, 0, -10333147966386144929666651337523200000000, 0, 0, 0, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..39.

FORMULA

a(n) = n! * A010815(n).

a(n) = Sum_{k=0..A003056(n)} (-1)^k * A351884(n,k). - Alois P. Heinz, Feb 23 2022

CROSSREFS

Column k=1 of A293139.

Cf. A003056, A010815, A088311, A351884.

Sequence in context: A156433 A169771 A326779 * A008551 A183896 A228073

Adjacent sequences:  A293137 A293138 A293139 * A293141 A293142 A293143

KEYWORD

sign

AUTHOR

Seiichi Manyama, Oct 01 2017

STATUS

approved

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Last modified July 5 13:39 EDT 2022. Contains 355099 sequences. (Running on oeis4.)