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A255359
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Product_{k=0..n} (k^4)!.
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7
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OFFSET
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0,3
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COMMENTS
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The next term a(3) has 135 digits.
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LINKS
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Vaclav Kotesovec, Table of n, a(n) for n = 0..4
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FORMULA
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a(n) ~ c * n^(1 + 28*n/15 + 4*n^3/3 + 2*n^4 + 4*n^5/5) * (2*Pi)^(n/2) / exp(19*n/9 + n^4/2 + 9*n^5/25), where c = A255438 = 6.644987918706354049483118... .
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MATHEMATICA
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Table[Product[(k^4)!, {k, 0, n}], {n, 0, 5}]
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CROSSREFS
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Cf. A000178, A255322, A255358, A255360.
Cf. A002109, A051675, A255321, A255323, A255344.
Cf. A000142, A255268, A255269, A255438.
Sequence in context: A064589 A086644 A217797 * A011527 A172543 A298820
Adjacent sequences: A255356 A255357 A255358 * A255360 A255361 A255362
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KEYWORD
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nonn
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AUTHOR
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Vaclav Kotesovec, Feb 21 2015
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STATUS
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approved
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