OFFSET
0,4
LINKS
Alois P. Heinz, Table of n, a(n) for n = 0..30
FORMULA
From Vaclav Kotesovec, Jul 02 2016: (Start)
a(n) ~ (n!)^(n-1).
a(n) ~ 2^((n-1)/2) * Pi^((n-1)/2) * n^((2*n+1)*(n-1)/2) / exp(n^2-n-1/12).
(End)
MATHEMATICA
Table[Binomial[n!, n], {n, 0, 12}] (* Vladimir Joseph Stephan Orlovsky, Mar 03 2011*)
PROG
(PARI) for(i=1, 10, print1(", "binomial(i!, i)))
CROSSREFS
KEYWORD
nonn
AUTHOR
Jon Perry, Jul 28 2003
EXTENSIONS
a(0)=1 prepended by Alois P. Heinz, Nov 06 2016
STATUS
approved