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A022723
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Expansion of Product_{m>=1} (1+m*q^m)^-31.
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2
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1, -31, 434, -3627, 20367, -84537, 296825, -1027805, 3586700, -11522204, 33703882, -97807604, 289043659, -814257997, 2164448117, -5763699428, 15479115951, -40058137473, 100379076723, -252617470522, 633832842041
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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)^-31, {k, 1, nmax}], {q, 0, nmax}], q]] (* G. C. Greubel, Jul 20 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)^-31)) \\ G. C. Greubel, Jul 20 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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