A015249 - OEIS

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A015249 as a simple table

`n`		`a(n)`
`2`		`1`
`3`		`3`
`4`		`15`
`5`		`55`
`6`		`231`
`7`		`903`
`8`		`3655`
`9`		`14535`
`10`		`58311`
`11`		`232903`
`12`		`932295`
`13`		`3727815`
`14`		`14913991`
`15`		`59650503`
`16`		`238612935`
`17`		`954429895`
`18`		`3817763271`
`19`		`15270965703`
`20`		`61084037575`
`21`		`244335800775`
`22`		`977343902151`
`23`		`3909374210503`
`24`		`15637499638215`

[1,3,15,55,231,903,3655,14535,58311,232903,932295, 3727815,14913991,59650503,238612935,954429895, 3817763271,15270965703,61084037575,244335800775, 977343902151,3909374210503,15637499638215]

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Last modified April 24 08:59 EDT 2024. Contains 371935 sequences. (Running on oeis4.)