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A022625 Expansion of Product_{m>=1} (1+q^m)^(-30). 2
1, -30, 435, -4090, 28305, -155586, 716910, -2884080, 10440930, -34752790, 107952705, -316326840, 881621260, -2352438330, 6041102175, -14993771926, 36092874960, -84513784620, 192981056950, -430636738770, 940848408276 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

G. C. Greubel, Table of n, a(n) for n = 0..1000

FORMULA

a(n) ~ (-1)^n * 5^(1/4) * exp(Pi*sqrt(5*n)) / (2^(3/2) * n^(3/4)). - Vaclav Kotesovec, Aug 27 2015

MATHEMATICA

nmax = 50; CoefficientList[Series[Product[1/(1 + x^k)^30, {k, 1, nmax}], {x, 0, nmax}], x] (* Vaclav Kotesovec, Aug 27 2015 *)

CROSSREFS

Sequence in context: A210431 A296919 A010946 * A125465 A215193 A163130

Adjacent sequences:  A022622 A022623 A022624 * A022626 A022627 A022628

KEYWORD

sign

AUTHOR

N. J. A. Sloane

STATUS

approved

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Last modified October 29 19:29 EDT 2020. Contains 338069 sequences. (Running on oeis4.)