A071551 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

A071551

a(n) = (9n)!/n!^9.

1, 362880, 12504636144000, 1080491954750208000000, 140810154080474667338550000000, 23183587808948692737291767860055162880, 4439413043841128802009762476941510771390464000

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,2

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..100

MATHEMATICA

Table[(9n)!/(n)!^9, {n, 0, 20}] (* Vincenzo Librandi, Aug 13 2014 *)

PROG

(Magma) [Factorial(9*n)/Factorial(n)^9: n in [0..20]]; // Vincenzo Librandi, Aug 13 2014

CROSSREFS

Sequences (k*n)!/n!^k: A000984 (k = 2), A006480 (k = 3), A008977 (k = 4), A008978 (k = 5), A008979 (k = 6), A071549 (k = 7), A071550 (k = 8), A071552 (k = 10).

Sequence in context: A227671 A172536 A287085 * A181725 A195393 A229676

Adjacent sequences: A071548 A071549 A071550 * A071552 A071553 A071554

KEYWORD

nonn

AUTHOR

Benoit Cloitre, May 30 2002

STATUS

approved