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A109097
Numbers n such that n! is the product of exactly four smaller factorials.
10
8, 9, 24, 72, 96, 216, 288, 480, 864, 1152, 1440, 2880, 3456, 4320, 5760, 8640, 13824, 17280, 20160, 25920, 28800, 34560, 60480, 69120, 86400
OFFSET
1,1
EXAMPLE
86400! = 3! * 5! * 5! * 86399!, so 86400 is in the sequence.
KEYWORD
nonn
AUTHOR
Jud McCranie, Jun 19 2005
EXTENSIONS
Definition corrected by Jon E. Schoenfield, Jul 02 2010
STATUS
approved