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A087315
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a(n) = Product prime(k)^prime(n-k+1), k = 1 to n.
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3
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1, 4, 72, 21600, 190512000, 580909190400000, 428616352408083840000000, 859278392084450410309036800000000000, 2097197194438629126172451944256706311040000000000000
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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EXAMPLE
| a(3) = 2^5*3^3*5^2 = 21600.
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MAPLE
| seq(product(ithprime(k)^ithprime(a-k+1), k=1..a), a=1..10);
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CROSSREFS
| Sequence in context: A024257 A152653 A172478 * A081460 A055556 A168299
Adjacent sequences: A087312 A087313 A087314 * A087316 A087317 A087318
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KEYWORD
| nonn
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AUTHOR
| Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Sep 03 2003
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EXTENSIONS
| More terms from Jorge Coveiro (jorgecoveiro(AT)yahoo.com), Dec 22 2004
Corrected by David Wasserman (wasserma(AT)spawar.navy.mil), May 02 2005
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