A012997 - OEIS

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

A012997 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`2`
`2`		`4`
`3`		`8`
`4`		`16`
`5`		`72`
`6`		`544`
`7`		`3040`
`8`		`11008`
`9`		`64896`
`10`		`1060224`
`11`		`10595840`
`12`		`38065152`
`13`		`87854080`
`14`		`9708670976`
`15`		`170663275520`
`16`		`276991311872`
`17`		`-13108265091072`
`18`		`283899182678016`
`19`		`9548887177330688`
`20`		`-9456062364418048`

[1,2,4,8,16,72,544,3040,11008,64896,1060224, 10595840,38065152,87854080,9708670976, 170663275520,276991311872,-13108265091072, 283899182678016,9548887177330688, -9456062364418048]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 19 02:28 EDT 2024. Contains 371782 sequences. (Running on oeis4.)