A006879 - OEIS

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A006879 as a simple table

`n`		`a(n)`
`0`		`0`
`1`		`4`
`2`		`21`
`3`		`143`
`4`		`1061`
`5`		`8363`
`6`		`68906`
`7`		`586081`
`8`		`5096876`
`9`		`45086079`
`10`		`404204977`
`11`		`3663002302`
`12`		`33489857205`
`13`		`308457624821`
`14`		`2858876213963`
`15`		`26639628671867`
`16`		`249393770611256`
`17`		`2344318816620308`
`18`		`22116397130086627`
`19`		`209317712988603747`
`20`		`1986761935284574233`
`21`		`18906449883457813088`
`22`		`180340017203297174362`

[0,4,21,143,1061,8363,68906,586081,5096876, 45086079,404204977,3663002302,33489857205, 308457624821,2858876213963,26639628671867, 249393770611256,2344318816620308, 22116397130086627,209317712988603747, 1986761935284574233,18906449883457813088, 180340017203297174362]

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Last modified April 23 06:58 EDT 2024. Contains 371906 sequences. (Running on oeis4.)