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A195393 (9*n)! 2
1, 362880, 6402373705728000, 10888869450418352160768000000, 371993326789901217467999448150835200000000, 119622220865480194561963161495657715064383733760000000000 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..50

PROG

(MAGMA) [Factorial(9*n): n in [0..10]]

CROSSREFS

Cf. A000152, A010050, A100732, A100733, A100734, A195390, A195391, A195392

Sequence in context: A287085 A071551 A181725 * A229676 A230754 A205043

Adjacent sequences:  A195390 A195391 A195392 * A195394 A195395 A195396

KEYWORD

nonn,easy

AUTHOR

Vincenzo Librandi, Sep 24 2011

STATUS

approved

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Last modified September 18 04:22 EDT 2021. Contains 347508 sequences. (Running on oeis4.)