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A134372 ((2n)!)^2. 5
1, 4, 576, 518400, 1625702400, 13168189440000, 229442532802560000, 7600054456551997440000, 437763136697395052544000000, 40990389067797283140009984000000, 5919012181389927685417441689600000000 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..10.

MATHEMATICA

Table[((2n)!)^(2), {n, 0, 10}]

((2*Range[0, 20])!)^2 (* Harvey P. Dale, Jul 14 2011 *)

CROSSREFS

Cf. A000142, A001044, A000442, A036740, A010050, A134366, A134367, A134368, A134369, A134371, A134374, A134375.

Sequence in context: A274470 A282196 A114764 * A177926 A241095 A177963

Adjacent sequences:  A134369 A134370 A134371 * A134373 A134374 A134375

KEYWORD

nonn

AUTHOR

Artur Jasinski, Oct 22 2007

STATUS

approved

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Last modified November 20 05:07 EST 2019. Contains 329323 sequences. (Running on oeis4.)