A007224 - OEIS

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A007224 as a simple table

`n`		`a(n)`
`4`		`2`
`5`		`9`
`6`		`38`
`7`		`143`
`8`		`546`
`9`		`2066`
`10`		`7752`
`11`		`29070`
`12`		`108968`
`13`		`408595`
`14`		`1533870`
`15`		`5766243`
`16`		`21710850`
`17`		`81880920`
`18`		`309328008`
`19`		`1170524970`
`20`		`4436618940`
`21`		`16842720336`
`22`		`64037794548`
`23`		`243836217702`
`24`		`929759970392`
`25`		`3549992610584`
`26`		`13571935767600`
`27`		`51950354135888`

[2,9,38,143,546,2066,7752,29070,108968,408595, 1533870,5766243,21710850,81880920,309328008, 1170524970,4436618940,16842720336,64037794548, 243836217702,929759970392,3549992610584, 13571935767600,51950354135888]

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Last modified April 23 19:56 EDT 2024. Contains 371916 sequences. (Running on oeis4.)