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Search: id:A074319
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| A074319 |
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Product of next n factorials. |
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+0
2
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| 2, 144, 2073600, 17557585920000, 192668014586363904000000, 5116462645455544976110780416000000000, 551096864092633744724294766310605805584384000000000000
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Product of next n factorials gives this sequence, while product of first n factorials = superfactorial is A000178. If superfactorial is sf(n) then this function, "uppersuperfactorial", is usf(n)= sf(2n)/sf(n).
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FORMULA
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product(i!, i=n+1, 2n)
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MATHEMATICA
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Table[Product[i!, {i, n+1, 2n}], {n, 10}]
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CROSSREFS
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Cf. A000178.
Sequence in context: A101827 A103207 A093002 this_sequence A071064 A014080 A110624
Adjacent sequences: A074316 A074317 A074318 this_sequence A074320 A074321 A074322
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KEYWORD
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nonn
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AUTHOR
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Zak Seidov (zakseidov(AT)yahoo.com), Sep 22 2002
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