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A109100
Numbers n such that n! is the product of exactly 2 smaller factorials (greater than 1).
6
10, 16, 24, 48, 96, 144, 192, 288, 384, 720, 768, 864, 1440, 1536, 1728, 3072, 4320, 5184, 6144, 8640, 10368, 12288, 24576, 25920, 31104, 40320, 49152, 51840, 62208, 80640, 86400, 98304
OFFSET
1,1
EXAMPLE
10! = 3! * 5! * 7! = 6! * 7!, so 10 is in the sequence.
KEYWORD
nonn
AUTHOR
Jud McCranie, Jun 19 2005
STATUS
approved