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A022679
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Expansion of Product_{m>=1} (1-m*q^m)^19.
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2
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1, -19, 133, -304, -931, 5966, -3743, -30305, 25384, 124963, 115330, -927751, -921272, 3677203, 4569747, -823517, -29704847, -35843823, 67385590, 181844002, 266220704, -578824816, -1690299907, -654094418, 3019554594
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OFFSET
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0,2
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LINKS
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MATHEMATICA
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With[{nmax = 50}, CoefficientList[Series[Product[(1 - k*q^k)^19, {k, 1, nmax}], {q, 0, nmax}], q]] (* G. C. Greubel, Jul 18 2018 *)
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PROG
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(PARI) m=50; q='q+O('q^m); Vec(prod(n=1, m, (1-n*q^n)^19)) \\ G. C. Greubel, Jul 18 2018
(Magma) Coefficients(&*[(1-m*x^m)^19:m in [1..40]])[1..40] where x is PolynomialRing(Integers()).1; // G. C. Greubel, Jul 18 2018
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CROSSREFS
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KEYWORD
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sign
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AUTHOR
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STATUS
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approved
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