A207501 - OEIS

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A207501 as a simple table

`n`		`a(n)`
`1`		`9`
`2`		`81`
`3`		`297`
`4`		`1004`
`5`		`2942`
`6`		`7305`
`7`		`17911`
`8`		`40262`
`9`		`87990`
`10`		`187012`
`11`		`385400`
`12`		`783726`
`13`		`1564402`
`14`		`3084097`
`15`		`6019187`
`16`		`11629307`
`17`		`22307563`
`18`		`42493220`
`19`		`80468378`
`20`		`151622295`
`21`		`284370183`
`22`		`531240776`
`23`		`988874960`
`24`		`1834816342`
`25`		`3394683936`
`26`		`6264203818`
`27`		`11531988896`

[9,81,297,1004,2942,7305,17911,40262,87990,187012, 385400,783726,1564402,3084097,6019187,11629307, 22307563,42493220,80468378,151622295,284370183, 531240776,988874960,1834816342,3394683936, 6264203818,11531988896]

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Last modified May 13 16:16 EDT 2024. Contains 372522 sequences. (Running on oeis4.)