A321327 Expansion of Product_{k>=0} (1 - x^(2^k))^(2^k).

1, -1, -2, 2, -3, 3, 8, -8, -6, 6, 4, -4, 26, -26, -56, 56, -7, 7, 70, -70, -51, 51, 32, -32, 120, -120, -272, 272, -200, 200, 672, -672, -182, 182, -308, 308, 1026, -1026, -1744, 1744, -660, 660, 3064, -3064, -916, 916, -1232, 1232, 2466, -2466, -3700, 3700, -3990, 3990

Offset: 0

Author

Seiichi Manyama, Nov 05 2018

Keywords

• sign

Crossrefs

Convolution inverse of A073709.

Cf. A073707, A321326.

Formula

G.f.: A(x) satisfies A(x) = (1 - x) * A(x^2)^2, with A(0) = 1.