A219837 - OEIS

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A219837 as a simple table

`n`		`a(n)`
`0`		`0`
`1`		`0`
`2`		`0`
`3`		`0`
`4`		`2`
`5`		`20`
`6`		`120`
`7`		`567`
`8`		`2320`
`9`		`8596`
`10`		`29578`
`11`		`96058`
`12`		`297776`
`13`		`888460`
`14`		`2567534`
`15`		`7221974`
`16`		`19849284`
`17`		`53473464`
`18`		`141559090`
`19`		`369018290`
`20`		`948897336`
`21`		`2410350276`
`22`		`6055659350`
`23`		`15063123950`
`24`		`37130340492`
`25`		`90769197360`
`26`		`220209351130`
`27`		`530489281162`
`28`		`1269657766720`

[0,0,0,0,2,20,120,567,2320,8596,29578,96058, 297776,888460,2567534,7221974,19849284,53473464, 141559090,369018290,948897336,2410350276, 6055659350,15063123950,37130340492,90769197360, 220209351130,530489281162,1269657766720]

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Last modified June 2 20:59 EDT 2024. Contains 373049 sequences. (Running on oeis4.)