A263688 - OEIS

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A263688 as a simple table

`n`		`a(n)`
`0`		`0`
`1`		`1`
`2`		`1`
`3`		`4`
`4`		`18`
`5`		`98`
`6`		`630`
`7`		`4676`
`8`		`39368`
`9`		`370748`
`10`		`3861900`
`11`		`44087008`
`12`		`547360968`
`13`		`7342948312`
`14`		`105848450344`
`15`		`1631635791184`
`16`		`26782838577600`
`17`		`466413214471568`
`18`		`8588795078851344`
`19`		`166747235206457024`
`20`		`3404055687248777120`
`21`		`72895914363584236064`
`22`		`1633918325381940384864`

[0,1,1,4,18,98,630,4676,39368,370748,3861900, 44087008,547360968,7342948312,105848450344, 1631635791184,26782838577600,466413214471568, 8588795078851344,166747235206457024, 3404055687248777120,72895914363584236064, 1633918325381940384864]

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Last modified September 15 22:11 EDT 2024. Contains 375959 sequences. (Running on oeis4.)