A047865 - OEIS

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A047865 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`0`
`2`		`0`
`3`		`0`
`4`		`6`
`5`		`24`
`6`		`120`
`7`		`720`
`8`		`6300`
`9`		`58464`
`10`		`586656`
`11`		`6384960`
`12`		`76471560`
`13`		`994831200`
`14`		`13939507296`
`15`		`209097854784`
`16`		`3345235180560`
`17`		`56866395720960`
`18`		`1023601917024000`
`19`		`19448577603454464`
`20`		`388972171805410656`
`21`		`8168409582839579520`
`22`		`179704944537482689920`

[1,0,0,0,6,24,120,720,6300,58464,586656,6384960, 76471560,994831200,13939507296,209097854784, 3345235180560,56866395720960,1023601917024000, 19448577603454464,388972171805410656, 8168409582839579520,179704944537482689920]

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Last modified April 19 23:40 EDT 2024. Contains 371798 sequences. (Running on oeis4.)