A032172 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

A032172 as a simple table

`n`		`a(n)`
`1`		`2`
`2`		`2`
`3`		`3`
`4`		`9`
`5`		`27`
`6`		`93`
`7`		`317`
`8`		`1148`
`9`		`4203`
`10`		`15781`
`11`		`60066`
`12`		`231968`
`13`		`905301`
`14`		`3567982`
`15`		`14175319`
`16`		`56722193`
`17`		`228380002`
`18`		`924598874`
`19`		`3761536993`
`20`		`15370095298`
`21`		`63051505041`
`22`		`259573763572`
`23`		`1072091242996`
`24`		`4441058718736`

[2,2,3,9,27,93,317,1148,4203,15781,60066,231968, 905301,3567982,14175319,56722193,228380002, 924598874,3761536993,15370095298,63051505041, 259573763572,1072091242996,4441058718736]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 19 08:20 EDT 2024. Contains 371782 sequences. (Running on oeis4.)