A321445 Expansion of Product_{0 < i < j} 1/(1 - x^(i^2 + j^2)).

1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 2, 0, 0, 1, 0, 2, 0, 1, 1, 0, 4, 0, 1, 2, 0, 5, 2, 2, 2, 1, 8, 2, 2, 4, 3, 9, 4, 5, 5, 6, 14, 5, 7, 9, 8, 17, 10, 12, 10, 12, 26, 15, 18, 17, 19, 32, 22, 26, 23, 28, 47, 29, 36, 38, 39, 62, 44, 52, 52, 54, 85, 63, 70, 75, 76, 111, 90, 98, 106

Offset

0,11

Links

Table of n, a(n) for n=0..78.

Formula

G.f.: Product_{k>0} 1/(1 - x^k)^A025441(k).

Crossrefs

Cf. A025441, A319734, A321437, A321444.

Sequence in context: A072453 A307303 A324252 * A353459 A007423 A076544

Adjacent sequences: A321442 A321443 A321444 * A321446 A321447 A321448

Keyword

nonn

Author

Seiichi Manyama, Nov 09 2018

Status

approved