A321326 G.f. satisfies: A(x) = (1 - x) * Product_{k>0} A(x^(2*k)) / Product_{k>1} A(x^(2*k-1)).

1, -1, -1, 2, -3, 2, 4, -6, -2, 5, 0, -3, 15, -13, -19, 27, -14, 4, 25, -33, -3, 7, 6, 15, 33, -48, -58, 69, -94, 119, 117, -245, 60, -3, -36, 170, 140, -237, -305, 300, -161, 248, 356, -554, 8, -263, 340, 469, -94, -25, -945, 102, -68, 1200, 694, -1786, 225, -974

Offset: 0

Author

Seiichi Manyama, Nov 05 2018

Keywords

• sign

Links

• Seiichi Manyama, Table of n, a(n) for n = 0..10000

Crossrefs

Cf. A067856, A321088, A321325, A321327.

Formula

G.f.: Product_{k>0} (1 - x^k)^A067856(k).

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