A026620 - OEIS

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A026620 as a simple table

`n`		`a(n)`
`2`		`1`
`3`		`9`
`4`		`37`
`5`		`147`
`6`		`576`
`7`		`2244`
`8`		`8723`
`9`		`33891`
`10`		`131716`
`11`		`512278`
`12`		`1994202`
`13`		`7770734`
`14`		`30310320`
`15`		`118343970`
`16`		`462501135`
`17`		`1809134115`
`18`		`7082699580`
`19`		`27750808470`
`20`		`108812919270`
`21`		`426966196410`
`22`		`1676471166240`

[1,9,37,147,576,2244,8723,33891,131716,512278, 1994202,7770734,30310320,118343970,462501135, 1809134115,7082699580,27750808470,108812919270, 426966196410,1676471166240]

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Last modified April 26 07:58 EDT 2024. Contains 371991 sequences. (Running on oeis4.)