A169687 - OEIS

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A169687 as a simple table

`n`		`a(n)`
`2`		`6`
`3`		`21`
`4`		`69`
`5`		`219`
`6`		`681`
`7`		`2091`
`8`		`6369`
`9`		`19299`
`10`		`58281`
`11`		`175611`
`12`		`528369`
`13`		`1588179`
`14`		`4770681`
`15`		`14324331`
`16`		`42997569`
`17`		`129041859`
`18`		`387223881`
`19`		`1161868251`
`20`		`3485997969`
`21`		`10458780339`
`22`		`31377913881`
`23`		`94136887371`
`24`		`282416953569`
`25`		`847263443619`
`26`		`2541815496681`
`27`		`7625496821691`
`28`		`22876591128369`

[6,21,69,219,681,2091,6369,19299,58281,175611, 528369,1588179,4770681,14324331,42997569, 129041859,387223881,1161868251,3485997969, 10458780339,31377913881,94136887371,282416953569, 847263443619,2541815496681,7625496821691, 22876591128369]

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Last modified April 19 03:05 EDT 2024. Contains 371782 sequences. (Running on oeis4.)