OFFSET
0,3
COMMENTS
Theorem: Product((2*i)!, i = 1..n) > ((n+1)!)^n for n >= 2.
REFERENCES
D. S. Mitrinovic, Analytic Inequalities, Springer-Verlag, 1970; p. 193, 3.1.18.
LINKS
Matthew House, Table of n, a(n) for n = 0..28
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Apr 02 2007
STATUS
approved