A010800 - OEIS

A010800

a(n) = n! * (n+1)! * (n+2)! * (n+3)! * (n+4)! * (n+5)! / (2! * 3! * 4! * 5! * 6!).

1, 5040, 101606400, 6145155072000, 929147446886400000, 309071606732292096000000, 205619158526859285626880000000, 254046582743105184577722777600000000, 549289359343832305886569080815616000000000, 1979419135331434097492840339627153817600000000000

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OFFSET

1,2

LINKS

Seiichi Manyama, Table of n, a(n) for n = 1..102

Index entries for sequences related to factorial numbers

MATHEMATICA

Module[{nn=20, c=Times@@(Range[2, 6]!)}, (Times@@@Partition[ Range[ nn]!, 6, 1])/c] (* Harvey P. Dale, Jul 29 2015 *)

CROSSREFS

Column 6 in triangle A009963.

Sequence in context: A221622 A318714 A227669 * A172544 A287083 A158039

Adjacent sequences: A010797 A010798 A010799 * A010801 A010802 A010803

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane

EXTENSIONS

More terms from Harvey P. Dale, Jul 29 2015

Offset changed to 1 by Seiichi Manyama, Aug 14 2023

STATUS

approved