login
A108034
n!*(9*n^4-78*n^3+235*n^2-438*n+680)/72.
0
0, 400, 13280, 278880, 5120640, 90518400, 1602720000, 28966291200, 539568691200, 10411578777600, 208646710272000, 4347290787840000, 94201374339072000, 2122386883448832000, 49691667829579776000, 1208138588893716480000, 30476152489092710400000, 796939223079733493760000
OFFSET
4,2
REFERENCES
J. W. Moon, Topics on Tournaments. Holt, NY, 1968, p. 21.
CROSSREFS
Sequence in context: A281808 A192076 A006764 * A187051 A231288 A210262
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Jun 01 2005
STATUS
approved