

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



