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Search: id:A072529
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A072529 Product of the next n multiples of n. +0
1
1, 24, 3240, 1290240, 1126125000, 1822853652480, 4914543582748800, 20469829379869900800, 124583146969045247683200, 1061374990515840000000000000, 12232437772393129356474535526400 (list; graph; listen)
OFFSET

1,2

FORMULA

a(n) = n^n * [n(n+1)/2]! / [n(n-1)/2]! - Lior Manor (lior.manor(AT)gmail.com) Aug 19 2002

EXAMPLE

a(4) = 10*4 * 9*4 * 8*4 * 7*4 = 1290240

CROSSREFS

a(n) = A057003(n) * n^n.

Sequence in context: A090444 A001512 A088731 this_sequence A159681 A071639 A061530

Adjacent sequences: A072526 A072527 A072528 this_sequence A072530 A072531 A072532

KEYWORD

nonn

AUTHOR

Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Aug 01 2002

EXTENSIONS

More terms from Lior Manor (lior.manor(AT)gmail.com) Aug 19 2002

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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