A009507 - OEIS

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

A009507 as a simple table

`n`		`a(n)`
`0`		`0`
`1`		`1`
`2`		`2`
`3`		`4`
`4`		`8`
`5`		`12`
`6`		`8`
`7`		`-296`
`8`		`-2304`
`9`		`-25200`
`10`		`-183776`
`11`		`-1885952`
`12`		`-15141248`
`13`		`-163728576`
`14`		`-1461427328`
`15`		`-16916558720`
`16`		`-166452797440`
`17`		`-2050105730816`
`18`		`-21941424508416`
`19`		`-282656394482688`
`20`		`-3231615038191616`
`21`		`-42100913802486784`

[0,1,2,4,8,12,8,-296,-2304,-25200,-183776, -1885952,-15141248,-163728576,-1461427328, -16916558720,-166452797440,-2050105730816, -21941424508416,-282656394482688, -3231615038191616,-42100913802486784]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 19 12:14 EDT 2024. Contains 371792 sequences. (Running on oeis4.)