A006634 - OEIS

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

A006634 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`9`
`2`		`72`
`3`		`570`
`4`		`4554`
`5`		`36855`
`6`		`302064`
`7`		`2504304`
`8`		`20974005`
`9`		`177232627`
`10`		`1509395976`
`11`		`12943656180`
`12`		`111676661460`
`13`		`968786892675`
`14`		`8445123522144`
`15`		`73940567860896`
`16`		`649942898236596`
`17`		`5733561315124260`
`18`		`50744886833898400`
`19`		`450461491952952690`
`20`		`4009721145437152530`
`21`		`35782256673785401065`

[1,9,72,570,4554,36855,302064,2504304,20974005, 177232627,1509395976,12943656180,111676661460, 968786892675,8445123522144,73940567860896, 649942898236596,5733561315124260, 50744886833898400,450461491952952690, 4009721145437152530,35782256673785401065]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 25 06:14 EDT 2024. Contains 371964 sequences. (Running on oeis4.)