A097971 - OEIS

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

A097971 as a simple table

`n`		`a(n)`
`2`		`2`
`3`		`10`
`4`		`56`
`5`		`360`
`6`		`2640`
`7`		`21840`
`8`		`201600`
`9`		`2056320`
`10`		`22982400`
`11`		`279417600`
`12`		`3672345600`
`13`		`51891840000`
`14`		`784604620800`
`15`		`12640852224000`
`16`		`216202162176000`
`17`		`3912561709056000`
`18`		`74694359900160000`
`19`		`1500289571708928000`
`20`		`31627726106296320000`
`21`		`698242876346695680000`

[2,10,56,360,2640,21840,201600,2056320,22982400, 279417600,3672345600,51891840000,784604620800, 12640852224000,216202162176000,3912561709056000, 74694359900160000,1500289571708928000, 31627726106296320000,698242876346695680000]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 25 05:56 EDT 2024. Contains 371964 sequences. (Running on oeis4.)