A289684 - OEIS

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A289684 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`2`
`2`		`9`
`3`		`42`
`4`		`199`
`5`		`950`
`6`		`4554`
`7`		`21884`
`8`		`105323`
`9`		`507398`
`10`		`2446022`
`11`		`11796884`
`12`		`56912838`
`13`		`274630876`
`14`		`1325431956`
`15`		`6397576888`
`16`		`30882340531`
`17`		`149084312006`
`18`		`719736965358`
`19`		`3474807470756`
`20`		`16776410481266`
`21`		`80998307687668`
`22`		`391074406408716`
`23`		`1888199373821896`
`24`		`9116752061308798`

[1,2,9,42,199,950,4554,21884,105323,507398, 2446022,11796884,56912838,274630876,1325431956, 6397576888,30882340531,149084312006,719736965358, 3474807470756,16776410481266,80998307687668, 391074406408716,1888199373821896,9116752061308798]

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Last modified May 20 21:39 EDT 2022. Contains 353876 sequences. (Running on oeis4.)