A208421 - OEIS

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A208421 as a simple table

`n`		`a(n)`
`1`		`9`
`2`		`81`
`3`		`261`
`4`		`1269`
`5`		`5139`
`6`		`22509`
`7`		`95265`
`8`		`409239`
`9`		`1746639`
`10`		`7475751`
`11`		`31957515`
`12`		`136685781`
`13`		`584484003`
`14`		`2499573411`
`15`		`10689072525`
`16`		`45711185121`
`17`		`195479542125`
`18`		`835952734845`
`19`		`3574879817931`
`20`		`15287675934645`
`21`		`65376453864249`

[9,81,261,1269,5139,22509,95265,409239,1746639, 7475751,31957515,136685781,584484003,2499573411, 10689072525,45711185121,195479542125,835952734845, 3574879817931,15287675934645,65376453864249]

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Last modified May 9 04:49 EDT 2024. Contains 372341 sequences. (Running on oeis4.)