A026901 - OEIS

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A026901 as a simple table

`n`		`a(n)`
`3`		`1`
`4`		`10`
`5`		`68`
`6`		`396`
`7`		`2136`
`8`		`11062`
`9`		`56070`
`10`		`281306`
`11`		`1406721`
`12`		`7042818`
`13`		`35401568`
`14`		`178975192`
`15`		`910933936`
`16`		`4669860386`
`17`		`24114746282`
`18`		`125416122430`
`19`		`656713729000`
`20`		`3460748531510`
`21`		`18345703137458`
`22`		`97782896293158`
`23`		`523786141723670`

[1,10,68,396,2136,11062,56070,281306,1406721, 7042818,35401568,178975192,910933936,4669860386, 24114746282,125416122430,656713729000, 3460748531510,18345703137458,97782896293158, 523786141723670]

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Last modified February 9 06:46 EST 2023. Contains 360153 sequences. (Running on oeis4.)