A002216 - OEIS

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A002216 as a simple table

`n`		`a(n)`
`0`		`0`
`1`		`1`
`2`		`1`
`3`		`2`
`4`		`5`
`5`		`12`
`6`		`37`
`7`		`123`
`8`		`446`
`9`		`1689`
`10`		`6693`
`11`		`27034`
`12`		`111630`
`13`		`467262`
`14`		`1981353`
`15`		`8487400`
`16`		`36695369`
`17`		`159918120`
`18`		`701957539`
`19`		`3101072051`
`20`		`13779935438`
`21`		`61557789660`
`22`		`276327463180`
`23`		`1245935891922`
`24`		`5640868033058`
`25`		`25635351908072`
`26`		`116911035023017`

[0,1,1,2,5,12,37,123,446,1689,6693,27034,111630, 467262,1981353,8487400,36695369,159918120, 701957539,3101072051,13779935438,61557789660, 276327463180,1245935891922,5640868033058, 25635351908072,116911035023017]

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Last modified April 25 10:01 EDT 2024. Contains 371967 sequences. (Running on oeis4.)