A145220 - OEIS

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A145220 as a simple table

`n`		`a(n)`
`2`		`1`
`3`		`0`
`4`		`0`
`5`		`20`
`6`		`45`
`7`		`504`
`8`		`3640`
`9`		`33480`
`10`		`333585`
`11`		`3671360`
`12`		`44053416`
`13`		`572698620`
`14`		`8017774765`
`15`		`120266629560`
`16`		`1924266062160`
`17`		`32712523070864`
`18`		`588825415257345`
`19`		`11187682889912640`
`20`		`223753657798223920`
`21`		`4698826813762738020`
`22`		`103374189902780192781`
`23`		`2377606367763944486840`

[1,0,0,20,45,504,3640,33480,333585,3671360, 44053416,572698620,8017774765,120266629560, 1924266062160,32712523070864,588825415257345, 11187682889912640,223753657798223920, 4698826813762738020,103374189902780192781, 2377606367763944486840]

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Last modified April 18 04:31 EDT 2024. Contains 371767 sequences. (Running on oeis4.)