OFFSET
6,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 6..200
FORMULA
(n!/5!)*Stirling2(n-2, n-5). - Vladeta Jovovic, Jan 28 2004
a(n) = n! * (n-5)^2*(n-4)^2*(n-3)*(n-2)/5760. - Vaclav Kotesovec, Jul 25 2014
MATHEMATICA
Table[n! * (n-5)^2*(n-4)^2*(n-3)*(n-2)/5760, {n, 6, 20}] (* Vaclav Kotesovec, Jul 25 2014 *)
PROG
(Magma) [Factorial(n)*(n-5)^2*(n-4)^2*(n-3)*(n-2)/5760: n in [6..25]]; // Vincenzo Librandi, Jul 25 2014
CROSSREFS
KEYWORD
nonn
AUTHOR
Christian G. Bower, May 11 2000
STATUS
approved