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A093002
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Product of factorials of next n numbers.
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1
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OFFSET
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1,2
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COMMENTS
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LINKS
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EXAMPLE
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a(1)=2!=2, a(2)=3!*4!=144, a(3)=4!*5!*6!, a(4)=5!*6!*7!*8!.
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PROG
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(PARI) a(n)=prod(i=n+1, 2*n, i!)
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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Corrected and extended by Mohammed Bouayoun (bouyao(AT)wanadoo.fr), Mar 29 2004
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STATUS
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approved
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