A025256 - OEIS

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A025256 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`1`
`3`		`3`
`4`		`3`
`5`		`6`
`6`		`18`
`7`		`42`
`8`		`105`
`9`		`291`
`10`		`792`
`11`		`2181`
`12`		`6177`
`13`		`17628`
`14`		`50679`
`15`		`147255`
`16`		`430917`
`17`		`1268292`
`18`		`3754926`
`19`		`11172828`
`20`		`33389040`
`21`		`100181994`
`22`		`301682709`
`23`		`911436117`
`24`		`2761852011`
`25`		`8392005462`
`26`		`25563691341`
`27`		`78053071611`
`28`		`238830914937`
`29`		`732247187460`
`30`		`2249217635238`

[1,1,3,3,6,18,42,105,291,792,2181,6177,17628, 50679,147255,430917,1268292,3754926,11172828, 33389040,100181994,301682709,911436117,2761852011, 8392005462,25563691341,78053071611,238830914937, 732247187460,2249217635238]

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Last modified April 18 21:51 EDT 2024. Contains 371781 sequences. (Running on oeis4.)