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A298986
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a(n) = [x^n] Product_{k>=1} (1 - n*x^k)^k.
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3
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1, -1, -4, 9, 48, 100, -756, -3479, -1600, 24462, 225900, 364573, -643536, -9251736, -36989316, -32397975, 165039872, 1725828525, 5338814652, 8082713829, -26321848400, -233434232766, -811526778964, -1731126953532, 1151302859712, 23632432765000, 113461901639788, 287935019845749
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OFFSET
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0,3
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LINKS
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MATHEMATICA
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Table[SeriesCoefficient[Product[(1 - n x^k)^k, {k, 1, n}], {x, 0, n}], {n, 0, 27}]
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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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