OFFSET
1,2
EXAMPLE
The row for n = 4 is
(1*2*3*4), (5*6*7), (8*9), 10 or
24 210 72 10.
hence a(4) = 24 +210 +72 +10 = 316.
MAPLE
CROSSREFS
KEYWORD
nonn
AUTHOR
Amarnath Murthy, Apr 02 2004
EXTENSIONS
More terms from R. J. Mathar, Jul 27 2007
STATUS
approved