A327694 Expansion of Product_{k>=1} B(x^k), where B(x) is the g.f. of A284321.

1, 0, -1, -1, -1, 1, -1, 0, 0, 1, 4, 2, -1, -2, 1, 2, 0, -5, -2, 0, 5, -1, -6, -7, -3, 6, -1, -2, -6, 7, 18, 7, -8, -6, 1, 12, 4, -10, -7, 6, 27, 10, -21, -25, -1, 19, -4, -29, -26, 11, 39, 6, -27, -42, -3, 40, 12, -45, -32, 28, 90, 24, -55, -57, 9, 75, 14, -57, -59, 57, 139

Offset

0,11

Links

Table of n, a(n) for n=0..70.

Formula

G.f.: Product_{i>=1} Product_{j>=1} (1 - x^(i*(5*j-2)))*(1 - x^(i*(5*j-3))).

Crossrefs

Convolution inverse of A327691.

Cf. A284321, A327716.

Sequence in context: A159823 A075826 A085245 * A348136 A235795 A046096

Adjacent sequences: A327691 A327692 A327693 * A327695 A327696 A327697

Keyword

sign

Author

Seiichi Manyama, Sep 23 2019

Status

approved