A221588 - OEIS

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A221588 as a simple table

`n`		`a(n)`
`1`		`4`
`2`		`40`
`3`		`418`
`4`		`3760`
`5`		`31416`
`6`		`256736`
`7`		`2075520`
`8`		`16690688`
`9`		`133871616`
`10`		`1072357376`
`11`		`8584396800`
`12`		`68697325568`
`13`		`549667209216`
`14`		`4397692092416`
`15`		`35182954414080`
`16`		`281469306011648`
`17`		`2251777130889216`
`18`		`18014307778297856`
`19`		`144114825151119360`

[4,40,418,3760,31416,256736,2075520,16690688, 133871616,1072357376,8584396800,68697325568, 549667209216,4397692092416,35182954414080, 281469306011648,2251777130889216, 18014307778297856,144114825151119360]

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Last modified April 23 01:19 EDT 2024. Contains 371906 sequences. (Running on oeis4.)