A267240 - OEIS

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A267240 as a simple table

`n`		`a(n)`
`1`		`4`
`2`		`13`
`3`		`42`
`4`		`141`
`5`		`486`
`6`		`1685`
`7`		`5804`
`8`		`19769`
`9`		`66544`
`10`		`221581`
`11`		`730918`
`12`		`2391717`
`13`		`7772610`
`14`		`25110933`
`15`		`80713016`
`16`		`258280817`
`17`		`823269116`
`18`		`2615088973`
`19`		`8281113730`
`20`		`26150883901`
`21`		`82375282494`
`22`		`258893742933`
`23`		`811984918692`
`24`		`2541865829801`
`25`		`7943330715176`

[4,13,42,141,486,1685,5804,19769,66544,221581, 730918,2391717,7772610,25110933,80713016, 258280817,823269116,2615088973,8281113730, 26150883901,82375282494,258893742933,811984918692, 2541865829801,7943330715176]

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Last modified April 24 22:17 EDT 2024. Contains 371964 sequences. (Running on oeis4.)