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A272096
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a(n) = Product_{k=0..n} (k*n)!.
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1
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OFFSET
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0,3
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COMMENTS
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The next term has 126 digits.
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LINKS
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FORMULA
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a(n) ~ A^n * n^(1/4 + 13*n/12 + n^2 + n^3) * (2*Pi)^(1/4 + n/2) / exp(n*(2 + 2*n + 3*n^2)/4), where A = A074962 is the Glaisher-Kinkelin constant.
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MATHEMATICA
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Table[Product[(k*n)!, {k, 0, n}], {n, 0, 6}]
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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STATUS
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approved
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