A217447 - OEIS

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

A217447 as a simple table

`n`		`a(n)`
`2`		`2`
`3`		`6`
`4`		`12`
`5`		`32`
`6`		`120`
`7`		`580`
`8`		`3392`
`9`		`23244`
`10`		`182776`
`11`		`1622468`
`12`		`16045200`
`13`		`174894172`
`14`		`2082824744`
`15`		`26902998516`
`16`		`374570250688`
`17`		`5591767768460`
`18`		`89095070783832`
`19`		`1509041577895204`
`20`		`27073887615758576`
`21`		`512898265609845948`
`22`		`10230945527263709320`
`23`		`214337863242231108692`

[2,6,12,32,120,580,3392,23244,182776,1622468, 16045200,174894172,2082824744,26902998516, 374570250688,5591767768460,89095070783832, 1509041577895204,27073887615758576, 512898265609845948,10230945527263709320, 214337863242231108692]

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 8 23:08 EDT 2024. Contains 372341 sequences. (Running on oeis4.)