A178721 - OEIS

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A178721 as a simple table

`n`		`a(n)`
`1`		`0`
`2`		`0`
`3`		`0`
`4`		`0`
`5`		`0`
`6`		`0`
`7`		`40`
`8`		`3192`
`9`		`119180`
`10`		`2119176`
`11`		`23636352`
`12`		`186506000`
`13`		`1131544008`
`14`		`5613017128`
`15`		`23670094984`
`16`		`87463182432`
`17`		`289367715488`
`18`		`872345119896`
`19`		`2427609997716`
`20`		`6305272324272`

[0,0,0,0,0,0,40,3192,119180,2119176,23636352, 186506000,1131544008,5613017128,23670094984, 87463182432,289367715488,872345119896, 2427609997716,6305272324272]

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Last modified April 24 08:21 EDT 2024. Contains 371925 sequences. (Running on oeis4.)