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A125760
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a(n) = Product_{k=1..n} A002109(k).
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2
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1, 1, 4, 432, 11943936, 1031956070400000, 4159895825138319360000000000, 13809882382682787973867537170432000000000000000, 769161257109634779902443718589603914508004789479014400000000000000000000, 16596916396875768196482032091931000424134701157007816971266990744831779993781534720000000000000000000000000
(list;
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refs;
listen;
history;
text;
internal format)
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OFFSET
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0,3
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LINKS
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N. J. A. Sloane, Table of n, a(n) for n = 0..18
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MAPLE
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seq(mul(mul(mul(k, j=1..k), k=1..m), m=1..n), n=0..9); # Zerinvary Lajos, Jun 01 2007
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CROSSREFS
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Sequence in context: A360844 A264469 A172858 * A053780 A159514 A217269
Adjacent sequences: A125757 A125758 A125759 * A125761 A125762 A125763
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane, based on a suggestion from J. M. Bergot, Feb 06 2007
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STATUS
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approved
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