A261588 - OEIS

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A261588 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`2`
`3`		`5`
`4`		`14`
`5`		`42`
`6`		`131`
`7`		`420`
`8`		`1375`
`9`		`4576`
`10`		`15431`
`11`		`52603`
`12`		`180957`
`13`		`627340`
`14`		`2189430`
`15`		`7685785`
`16`		`27118855`
`17`		`96123508`
`18`		`342099955`
`19`		`1221979374`
`20`		`4379357895`
`21`		`15742077045`
`22`		`56742085710`
`23`		`205041235750`
`24`		`742647580815`
`25`		`2695585363122`
`26`		`9803561513316`
`27`		`35720226039252`
`28`		`130373533268780`

[1,1,2,5,14,42,131,420,1375,4576,15431,52603, 180957,627340,2189430,7685785,27118855,96123508, 342099955,1221979374,4379357895,15742077045, 56742085710,205041235750,742647580815, 2695585363122,9803561513316,35720226039252, 130373533268780]

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Last modified April 27 20:19 EDT 2024. Contains 372020 sequences. (Running on oeis4.)