A321433 Expansion of Product_{i>0, j>0, k>0} 1/(1 - x^(i^2 + j^2 + k^2)).

1, 0, 0, 1, 0, 0, 4, 0, 0, 7, 0, 3, 14, 0, 9, 23, 0, 21, 45, 3, 48, 72, 12, 96, 124, 39, 180, 204, 105, 327, 343, 225, 585, 572, 468, 1011, 976, 903, 1719, 1662, 1689, 2895, 2844, 3018, 4836, 4791, 5355, 8013, 8061, 9234, 13182, 13429, 15714, 21573, 22257, 26346

Offset: 0

Author

Seiichi Manyama, Nov 09 2018

Keywords

• nonn

Links

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

Crossrefs

Convolution inverse of A321432.

Cf. A063691, A321429, A321431.

Formula

G.f.: Product_{k>0} 1/(1 - x^k)^A063691(k).