A323291 - OEIS

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A323291 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`2`
`3`		`6`
`4`		`12`
`5`		`20`
`6`		`360`
`7`		`2520`
`8`		`1680`
`9`		`15120`
`10`		`151200`
`11`		`554400`
`12`		`9979200`
`13`		`129729600`
`14`		`605404800`
`15`		`27243216000`
`16`		`54486432000`
`17`		`308756448000`
`18`		`5557616064000`
`19`		`8122669632000`
`20`		`351982350720000`
`21`		`22174888095360000`
`22`		`25676186215680000`
`23`		`3740164458750720000`
`24`		`67322960257512960000`

[1,1,2,6,12,20,360,2520,1680,15120,151200,554400, 9979200,129729600,605404800,27243216000, 54486432000,308756448000,5557616064000, 8122669632000,351982350720000,22174888095360000, 25676186215680000,3740164458750720000, 67322960257512960000]

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Last modified April 26 10:40 EDT 2024. Contains 371994 sequences. (Running on oeis4.)