A294588 Expansion of Product_{k>=1} (1 - k*x^k)^(k^2).

1, -1, -8, -19, -13, 131, 497, 1149, 662, -4780, -22394, -55992, -75053, 44519, 614871, 2048356, 4311107, 4894537, -4917495, -44555890, -140584885, -292542844, -369256294, 110050979, 2247025840, 7757437455, 17600976064, 27240355017, 15747025855, -71354553868

Offset: 0

Author

Seiichi Manyama, Nov 03 2017

Keywords

• sign

Links

• Seiichi Manyama, Table of n, a(n) for n = 0..6653

Crossrefs

Column k=2 of A294587.

Cf. A285241.

Programs

PARI

N=66; x='x+O('x^N); Vec(prod(k=1, N, (1-k*x^k)^k^2))