A099898 - OEIS

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A099898 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`4`
`2`		`20`
`3`		`84`
`4`		`276`
`5`		`1108`
`6`		`5396`
`7`		`20564`
`8`		`65812`
`9`		`263252`
`10`		`1316116`
`11`		`5525588`
`12`		`18153748`
`13`		`72352852`
`14`		`352326932`
`15`		`1342197844`
`16`		`4295033108`
`17`		`17180132436`
`18`		`85900662036`
`19`		`360782778452`
`20`		`1185429127444`
`21`		`4758896116820`
`22`		`23175995856148`
`23`		`88323049672788`

[1,4,20,84,276,1108,5396,20564,65812,263252, 1316116,5525588,18153748,72352852,352326932, 1342197844,4295033108,17180132436,85900662036, 360782778452,1185429127444,4758896116820, 23175995856148,88323049672788]

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Last modified April 19 19:02 EDT 2024. Contains 371798 sequences. (Running on oeis4.)