A142239 - OEIS

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

A142239 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`4`
`2`		`9`
`3`		`40`
`4`		`89`
`5`		`396`
`6`		`881`
`7`		`3920`
`8`		`8721`
`9`		`38804`
`10`		`86329`
`11`		`384120`
`12`		`854569`
`13`		`3802396`
`14`		`8459361`
`15`		`37639840`
`16`		`83739041`
`17`		`372596004`
`18`		`828931049`
`19`		`3688320200`
`20`		`8205571449`
`21`		`36510605996`
`22`		`81226783441`
`23`		`361417739760`
`24`		`804062262961`
`25`		`3577666791604`
`26`		`7959395846169`
`27`		`35415250176280`

[1,4,9,40,89,396,881,3920,8721,38804,86329,384120, 854569,3802396,8459361,37639840,83739041, 372596004,828931049,3688320200,8205571449, 36510605996,81226783441,361417739760,804062262961, 3577666791604,7959395846169,35415250176280]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)