A296237 Expansion of Product_{k>0} 1/(1 - x^(k*(3*k+1)/2)).
1, 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 4, 3, 5, 4, 6, 4, 6, 5, 6, 6, 7, 7, 7, 7, 9, 8, 10, 9, 11, 10, 11, 12, 12, 13, 13, 14, 15, 14, 17, 16, 19, 18, 20, 20, 21, 22, 23, 24, 25, 25, 28, 27, 30, 29, 33, 32, 35, 35, 37, 38, 39
Offset: 0
Keywords
Links
- Seiichi Manyama, Table of n, a(n) for n = 0..10000
Programs
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Mathematica
nmax = 100; CoefficientList[Series[Product[1/(1 - x^(k*(3*k+1)/2)), {k, 1, nmax}], {x, 0, nmax}], x] (* Vaclav Kotesovec, Dec 10 2017 *) -
PARI
N=66; x='x+O('x^N); Vec(1/prod(k=1, N, (1-x^(k*(3*k+1)/2))))
Comments