A327758 Expansion of Product_{k>=1} 1/(1 - x^k)^(3/k), where (m/n) is the Kronecker symbol.
1, 1, 0, 0, 1, 0, -1, -1, -1, -1, 0, 1, 1, 2, 3, 2, 1, 0, -2, -4, -4, -4, -3, 0, 3, 5, 6, 7, 4, 0, -4, -8, -12, -11, -6, -2, 4, 12, 17, 16, 12, 4, -8, -17, -22, -24, -20, -6, 11, 24, 34, 36, 29, 12, -10, -33, -47, -50, -40, -18, 13, 44, 66, 72, 59, 27, -16, -58, -89, -100, -84, -41
Offset: 0
Links
- Seiichi Manyama, Table of n, a(n) for n = 0..1000
- Eric Weisstein's World of Mathematics, Kronecker Symbol
Crossrefs
Programs
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PARI
N=66; x='x+O('x^N); Vec(1/prod(k=1, N, (1-x^k)^kronecker(3, k)))