A229889 - OEIS

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A229889 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`1`
`3`		`1`
`4`		`1`
`5`		`1`
`6`		`1`
`7`		`1`
`8`		`1`
`9`		`1`
`10`		`9`
`11`		`45`
`12`		`165`
`13`		`495`
`14`		`1287`
`15`		`3003`
`16`		`6435`
`17`		`12870`
`18`		`207350`
`19`		`1782638`
`20`		`10852478`
`21`		`52422578`
`22`		`213586658`
`23`		`762311978`
`24`		`2445069626`
`25`		`7177825511`
`26`		`167072419775`
`27`		`2041472747275`
`28`		`17401832788275`
`29`		`116094500641665`
`30`		`645070724513865`
`31`		`3103383925397925`

[1,1,1,1,1,1,1,1,1,1,9,45,165,495,1287,3003,6435, 12870,207350,1782638,10852478,52422578,213586658, 762311978,2445069626,7177825511,167072419775, 2041472747275,17401832788275,116094500641665, 645070724513865,3103383925397925]

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)