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A022653
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Expansion of Product_{m>=1} (1+m*q^m)^25.
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2
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1, 25, 350, 3625, 30825, 227005, 1495225, 8998625, 50231225, 262982425, 1302361670, 6141852925, 27731605150, 120415590250, 504692324800, 2048151994275, 8069513499800, 30937269482500, 115647629802975
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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+m*q^m)^25, {m, 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)^25)) \\ G. C. Greubel, Jul 18 2018
(Magma) Coefficients(&*[(1+m*x^m)^25:m in [1..40]])[1..50] 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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nonn
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AUTHOR
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STATUS
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approved
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