A304067 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

A304067 as a simple table

`n`		`a(n)`
`1`		`0`
`2`		`0`
`3`		`1`
`4`		`3`
`5`		`9`
`6`		`27`
`7`		`79`
`8`		`233`
`9`		`679`
`10`		`1987`
`11`		`5784`
`12`		`16864`
`13`		`49063`
`14`		`142821`
`15`		`415439`
`16`		`1208761`
`17`		`3516475`
`18`		`10232428`
`19`		`29778138`
`20`		`86682119`
`21`		`252382445`
`22`		`735040515`
`23`		`2141319946`
`24`		`6239913801`
`25`		`18188637903`
`26`		`53033228465`
`27`		`154674931182`
`28`		`451247206423`

[0,0,1,3,9,27,79,233,679,1987,5784,16864,49063, 142821,415439,1208761,3516475,10232428,29778138, 86682119,252382445,735040515,2141319946, 6239913801,18188637903,53033228465,154674931182, 451247206423]

License Agreements, Terms of Use, Privacy Policy. .

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