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A336294
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a(n) = (n!)^n * [x^n] Product_{k>=1} (1 + x^k/(k!)^n).
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1
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1, 1, 1, 28, 257, 103126, 46667437282, 140776183474585, 38414859209967468545, 8006615289848673023223926602, 100856872226698664486645150126408916015626, 7425498079138047573566961707334890995112470771975
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OFFSET
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0,4
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LINKS
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MATHEMATICA
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Table[(n!)^n SeriesCoefficient[Product[(1 + x^k/(k!)^n), {k, 1, n}], {x, 0, n}], {n, 0, 11}]
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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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