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A029585 E.g.f. 1/(1+sin(x)+sin(x)^2). 1
1, -1, 0, 7, -24, -61, 1200, -4493, -48384, 781319, -1804800, -85444193, 1210361856, 1847527499, -288162201600, 3428482320907, 33720680349696, -1637781983297521, 14158399925452800, 431041350297034807, -14236987086964260864 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,4

LINKS

Table of n, a(n) for n=0..20.

FORMULA

a(n) = (-1)^n*A002969(n). - Arkadiusz Wesolowski, Aug 13 2012

CROSSREFS

Sequence in context: A062449 A014205 A002969 * A114291 A211382 A217746

Adjacent sequences:  A029582 A029583 A029584 * A029586 A029587 A029588

KEYWORD

sign

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified October 17 01:37 EDT 2018. Contains 316275 sequences. (Running on oeis4.)