A220381 - OEIS

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

A220381 as a simple table

`n`		`a(n)`
`1`		`4`
`2`		`25`
`3`		`136`
`4`		`753`
`5`		`4160`
`6`		`22989`
`7`		`127037`
`8`		`702009`
`9`		`3879313`
`10`		`21437148`
`11`		`118462034`
`12`		`654623158`
`13`		`3617458391`
`14`		`19990134860`
`15`		`110465815644`
`16`		`610435923087`
`17`		`3373279000591`
`18`		`18640795512630`
`19`		`103009344107857`
`20`		`569231338133692`

[4,25,136,753,4160,22989,127037,702009,3879313, 21437148,118462034,654623158,3617458391, 19990134860,110465815644,610435923087, 3373279000591,18640795512630,103009344107857, 569231338133692]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 25 04:42 EDT 2024. Contains 371964 sequences. (Running on oeis4.)