A031970 - OEIS

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

A031970 as a simple table

`n`		`a(n)`
`0`		`0`
`1`		`3`
`2`		`23`
`3`		`131`
`4`		`664`
`5`		`3166`
`6`		`14545`
`7`		`65187`
`8`		`287060`
`9`		`1247690`
`10`		`5368670`
`11`		`22917198`
`12`		`97195968`
`13`		`410030812`
`14`		`1722027973`
`15`		`7204620067`
`16`		`30044212828`
`17`		`124932768082`
`18`		`518215690018`
`19`		`2144815618522`
`20`		`8859729437488`
`21`		`36533517261412`
`22`		`150410878895818`
`23`		`618371102344846`
`24`		`2538971850705064`
`25`		`10412490129563556`

[0,3,23,131,664,3166,14545,65187,287060,1247690, 5368670,22917198,97195968,410030812,1722027973, 7204620067,30044212828,124932768082,518215690018, 2144815618522,8859729437488,36533517261412, 150410878895818,618371102344846,2538971850705064, 10412490129563556]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 25 12:14 EDT 2024. Contains 371969 sequences. (Running on oeis4.)