A000264 - OEIS

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A000264 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`1`
`3`		`3`
`4`		`14`
`5`		`80`
`6`		`518`
`7`		`3647`
`8`		`27274`
`9`		`213480`
`10`		`1731652`
`11`		`14455408`
`12`		`123552488`
`13`		`1077096124`
`14`		`9548805240`
`15`		`85884971043`
`16`		`782242251522`
`17`		`7203683481720`
`18`		`66989439309452`
`19`		`628399635777936`
`20`		`5940930064989720`
`21`		`56562734108608536`

[1,1,3,14,80,518,3647,27274,213480,1731652, 14455408,123552488,1077096124,9548805240, 85884971043,782242251522,7203683481720, 66989439309452,628399635777936,5940930064989720, 56562734108608536]

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Last modified May 3 08:32 EDT 2024. Contains 372207 sequences. (Running on oeis4.)