A000245 - OEIS

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A000245 as a simple table

`n`		`a(n)`
`0`		`0`
`1`		`1`
`2`		`3`
`3`		`9`
`4`		`28`
`5`		`90`
`6`		`297`
`7`		`1001`
`8`		`3432`
`9`		`11934`
`10`		`41990`
`11`		`149226`
`12`		`534888`
`13`		`1931540`
`14`		`7020405`
`15`		`25662825`
`16`		`94287120`
`17`		`347993910`
`18`		`1289624490`
`19`		`4796857230`
`20`		`17902146600`
`21`		`67016296620`
`22`		`251577050010`
`23`		`946844533674`
`24`		`3572042254128`
`25`		`13505406670700`
`26`		`51166197843852`
`27`		`194214400834356`

[0,1,3,9,28,90,297,1001,3432,11934,41990,149226, 534888,1931540,7020405,25662825,94287120, 347993910,1289624490,4796857230,17902146600, 67016296620,251577050010,946844533674, 3572042254128,13505406670700,51166197843852, 194214400834356]

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Last modified April 30 15:01 EDT 2024. Contains 372134 sequences. (Running on oeis4.)