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A321432
Expansion of Product_{i>0, j>0, k>0} (1 - x^(i^2 + j^2 + k^2)).
4
1, 0, 0, -1, 0, 0, -3, 0, 0, 0, 0, -3, 5, 0, -3, 7, 0, 12, -7, -3, 21, -14, 3, -6, 6, 27, -57, 22, 6, -36, 15, -75, 87, -17, -111, 99, -71, 75, -90, -91, 324, -225, 23, 57, -36, 332, -543, 333, 374, -417, 342, -473, 720, 18, -1132, 1227, -330, 202, -414, -846, 2357, -1998
OFFSET
0,7
LINKS
FORMULA
G.f.: Product_{k>0} (1 - x^k)^A063691(k).
CROSSREFS
KEYWORD
sign
AUTHOR
Seiichi Manyama, Nov 09 2018
STATUS
approved