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A127395
Product((2*i)!, i = 1..n) - ((n+1)!)^n.
1
0, 0, 12, 20736, 1186099200, 4863092981760000, 2405722022408355840000000, 210982363040448544794759659520000000, 4417663598633083951292726052200194139750400000000, 28285349218442861392592006529041874362190858603724800000000000000, 68815738101453790475316164980880834884596607113691790965601206272000000000000000000
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
CROSSREFS
Sequence in context: A216874 A012736 A013750 * A076807 A308139 A220791
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Apr 02 2007
STATUS
approved