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A109582 E.g.f.: -1/(1+x-x^3). 0
-1, 1, -2, 0, 24, -240, 1440, -5040, -40320, 1088640, -14515200, 119750400, 0, -24908083200, 610248038400, -9153720576000, 62768369664000, 1422749712384000, -70426110763008000, 1703031405723648000, -24329020081766400000, -51090942171709440000 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..21.

MAPLE

g:=-1/(1+x-x^3):gser:=series(g, x=0, 26): -1, seq(n!*coeff(gser, x^n), n=1..22);

CROSSREFS

Cf. A104769, A050935.

Sequence in context: A012591 A319221 A009799 * A308506 A255162 A097563

Adjacent sequences:  A109579 A109580 A109581 * A109583 A109584 A109585

KEYWORD

sign

AUTHOR

Roger L. Bagula, Jun 29 2005

STATUS

approved

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Last modified September 22 07:34 EDT 2020. Contains 337289 sequences. (Running on oeis4.)