A055891 - OEIS

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A055891 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`2`
`2`		`7`
`3`		`20`
`4`		`64`
`5`		`200`
`6`		`686`
`7`		`2324`
`8`		`8194`
`9`		`29084`
`10`		`104860`
`11`		`381116`
`12`		`1398148`
`13`		`5161592`
`14`		`19173958`
`15`		`71580752`
`16`		`268435474`
`17`		`1010572832`
`18`		`3817749138`
`19`		`14467230668`
`20`		`54975581488`
`21`		`209430687944`
`22`		`799644820114`
`23`		`3059510251700`
`24`		`11728124035248`

[1,2,7,20,64,200,686,2324,8194,29084,104860, 381116,1398148,5161592,19173958,71580752, 268435474,1010572832,3817749138,14467230668, 54975581488,209430687944,799644820114, 3059510251700,11728124035248]

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)