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A297324
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a(n) = [x^n] Product_{k>=1} (1 - k*x^k)^n.
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6
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1, -1, -3, 8, 9, -26, -168, 489, 1041, -5599, 12, 27103, 23436, -222912, -435473, 3177433, 375569, -24956018, 6931209, 181844002, 57372644, -2158209675, 853739235, 20642183588, -25063980804, -148768035501, 224915906836, 1322267927471, -2337343745721, -12604818831294
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OFFSET
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0,3
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LINKS
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FORMULA
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MATHEMATICA
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Table[SeriesCoefficient[Product[(1 - k x^k)^n, {k, 1, n}], {x, 0, n}], {n, 0, 29}]
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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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