A173499 - OEIS

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

A173499 as a simple table

`n`		`a(n)`
`1`		`0`
`2`		`0`
`3`		`2`
`4`		`20`
`5`		`204`
`6`		`2604`
`7`		`39990`
`8`		`720600`
`9`		`14913080`
`10`		`348678440`
`11`		`9090909090`
`12`		`261535698060`
`13`		`8230246567620`
`14`		`281241170407092`
`15`		`10371206370520814`
`16`		`410525522232055664`
`17`		`17361641481138401520`
`18`		`781282469559318055056`

[0,0,2,20,204,2604,39990,720600,14913080, 348678440,9090909090,261535698060,8230246567620, 281241170407092,10371206370520814, 410525522232055664,17361641481138401520, 781282469559318055056]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 24 04:14 EDT 2024. Contains 371918 sequences. (Running on oeis4.)