A286952 Expansion of Product_{j>=1} (1 - x^j)/(1 - x^(3*j))^3.

1, -1, -1, 3, -3, -2, 9, -8, -6, 22, -19, -13, 50, -42, -29, 104, -86, -57, 209, -170, -113, 398, -320, -208, 737, -586, -380, 1320, -1041, -666, 2311, -1808, -1152, 3949, -3069, -1938, 6629, -5120, -3221, 10920, -8390, -5242, 17724, -13549, -8435, 28342

Offset: 0

Author

Seiichi Manyama, May 17 2017

Keywords

• sign

Links

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

Crossrefs

3rd column of A286950.

Cf. A033687.