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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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..25.

EXAMPLE

86400! = 3! * 5! * 5! * 86399!, so 86400 is in the sequence.

CROSSREFS

Cf. A034878, A001013, A003135, A058295, A075082, A109095, A109096.

Sequence in context: A081351 A032462 A077599 * A115645 A068435 A124438

Adjacent sequences:  A109094 A109095 A109096 * A109098 A109099 A109100

KEYWORD

nonn

AUTHOR

Jud McCranie, Jun 19 2005

EXTENSIONS

Definition corrected by Jon E. Schoenfield, Jul 02 2010

STATUS

approved

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Last modified June 24 16:32 EDT 2017. Contains 288707 sequences.