A321429 Expansion of Product_{i>0, j>0, k>0} (1 + x^(i^2 + j^2 + k^2)).

1, 0, 0, 1, 0, 0, 3, 0, 0, 6, 0, 3, 7, 0, 9, 13, 0, 18, 19, 3, 39, 28, 9, 66, 42, 33, 105, 68, 78, 168, 111, 153, 261, 185, 285, 411, 325, 483, 636, 563, 798, 1017, 949, 1275, 1620, 1556, 2061, 2547, 2500, 3303, 4008, 3969, 5226, 6216, 6252, 8301, 9534, 9784, 12984

Offset

0,7

Links

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

Formula

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

Crossrefs

Cf. A063691, A321381, A321428.

Sequence in context: A193986 A062688 A067181 * A145225 A332442 A061480

Adjacent sequences: A321426 A321427 A321428 * A321430 A321431 A321432

Keyword

nonn

Author

Seiichi Manyama, Nov 09 2018

Status

approved