A189736 - OEIS

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

A189736 as a simple table

`n`		`a(n)`
`1`		`3`
`2`		`2`
`3`		`12`
`4`		`40`
`5`		`144`
`6`		`512`
`7`		`1824`
`8`		`6496`
`9`		`23136`
`10`		`82400`
`11`		`293472`
`12`		`1045216`
`13`		`3722592`
`14`		`13258208`
`15`		`47219808`
`16`		`168175840`
`17`		`598967136`
`18`		`2133253088`
`19`		`7597693536`
`20`		`27059586784`
`21`		`96374147424`
`22`		`343241615840`
`23`		`1222473142368`
`24`		`4353902658784`
`25`		`15506654261088`
`26`		`55227768100832`

[3,2,12,40,144,512,1824,6496,23136,82400,293472, 1045216,3722592,13258208,47219808,168175840, 598967136,2133253088,7597693536,27059586784, 96374147424,343241615840,1222473142368, 4353902658784,15506654261088,55227768100832]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 19 19:02 EDT 2024. Contains 371798 sequences. (Running on oeis4.)