A022721 Expansion of Product_{m>=1} (1+m*q^m)^-29.

1, -29, 377, -2900, 14877, -56666, 189109, -649339, 2219834, -6777677, 19041980, -54885893, 159810358, -432662339, 1117635553, -2957018205, 7799355410, -19555103564, 48073453671, -119774561120, 294567447945

Offset: 0

Author

N. J. A. Sloane

Keywords

• sign

Links

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

Programs

Mathematica

With[{nmax = 50}, CoefficientList[Series[Product[(1 + k*q^k)^-29, {k, 1, nmax}], {q, 0, nmax}], q]] (* G. C. Greubel, Jul 20 2018 *)

PARI

m=50; q='q+O('q^m); Vec(prod(n=1,m,(1+n*q^n)^-29)) \\ G. C. Greubel, Jul 20 2018