A004410 Expansion of (Sum x^(n^2), n = -inf .. inf )^(-9).

1, -18, 180, -1320, 7902, -40824, 188232, -792000, 3088980, -11297546, 39090312, -128849976, 406865880, -1236379320, 3629385936, -10324840512, 28542038238, -76852151280, 201967043260, -518957929080, 1305848905416