A002670 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

A002670 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`2`
`3`		`12`
`4`		`72`
`5`		`240`
`6`		`2400`
`7`		`907200`
`8`		`4233600`
`9`		`25401600`
`10`		`1371686400`
`11`		`251475840000`
`12`		`5532468480000`
`13`		`554827553280000`
`14`		`33659538232320000`
`15`		`73302994372608000`
`16`		`4453156908135936000000`
`17`		`50469111625540608000000`
`18`		`63553696121051136000000`

[1,2,12,72,240,2400,907200,4233600,25401600, 1371686400,251475840000,5532468480000, 554827553280000,33659538232320000, 73302994372608000,4453156908135936000000, 50469111625540608000000,63553696121051136000000]

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 6 17:20 EDT 2024. Contains 372297 sequences. (Running on oeis4.)