A026986 - OEIS

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

A026986 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`2`
`2`		`11`
`3`		`52`
`4`		`200`
`5`		`742`
`6`		`3532`
`7`		`18216`
`8`		`80728`
`9`		`331320`
`10`		`1567106`
`11`		`8014124`
`12`		`36841482`
`13`		`158071146`
`14`		`751787936`
`15`		`3820895710`
`16`		`17829567326`
`17`		`78319157796`
`18`		`374296581082`
`19`		`1895330556506`
`20`		`8917324246030`
`21`		`39744514627938`
`22`		`190602503862906`
`23`		`962726903486410`
`24`		`4553648018091836`
`25`		`20499468905835742`

[1,2,11,52,200,742,3532,18216,80728,331320, 1567106,8014124,36841482,158071146,751787936, 3820895710,17829567326,78319157796,374296581082, 1895330556506,8917324246030,39744514627938, 190602503862906,962726903486410,4553648018091836, 20499468905835742]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 19 15:11 EDT 2024. Contains 371794 sequences. (Running on oeis4.)