A109096 Numbers n such that n! is the product of exactly three smaller factorials.

4, 10, 12, 16, 36, 48, 144, 240, 576, 720, 1440, 2880, 4320, 10080, 14400, 17280, 30240, 80640, 86400

Offset

1,1

Links

Table of n, a(n) for n=1..19.

Example

144! = 3! * 4! * 143!, so 144 is in the sequence.

Crossrefs

Cf. A034878, A001013, A003135, A058295, A075082, A109095, A109097.

Sequence in context: A233741 A310340 A285570 * A079283 A190516 A310341

Adjacent sequences: A109093 A109094 A109095 * A109097 A109098 A109099

Keyword

nonn

Author

Jud McCranie, Jun 19 2005

Extensions

Definition corrected by Jon E. Schoenfield, Jul 02 2010

Status

approved