A109220 - OEIS

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A109220 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`3`
`2`		`7`
`3`		`20`
`4`		`53`
`5`		`143`
`6`		`385`
`7`		`1036`
`8`		`2789`
`9`		`7507`
`10`		`20207`
`11`		`54392`
`12`		`146409`
`13`		`394095`
`14`		`1060801`
`15`		`2855400`
`16`		`7685993`
`17`		`20688691`
`18`		`55688567`
`19`		`149899116`
`20`		`403489373`
`21`		`1086088287`
`22`		`2923466753`
`23`		`7869210964`
`24`		`21181866061`
`25`		`57016065763`
`26`		`153472396895`

[1,3,7,20,53,143,385,1036,2789,7507,20207,54392, 146409,394095,1060801,2855400,7685993,20688691, 55688567,149899116,403489373,1086088287, 2923466753,7869210964,21181866061,57016065763, 153472396895]

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Last modified April 25 16:45 EDT 2024. Contains 371989 sequences. (Running on oeis4.)