A001280 - OEIS

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A001280 as a simple table

`n`		`a(n)`
`8`		`11`
`9`		`309`
`10`		`5805`
`11`		`95575`
`12`		`1516785`
`13`		`24206055`
`14`		`396475975`
`15`		`6733084365`
`16`		`119143997490`
`17`		`2201649739310`
`18`		`42514526708766`
`19`		`857750898213594`
`20`		`18068801884373310`
`21`		`397038791150060850`
`22`		`9090755207499817170`
`23`		`216635190303090215910`

[11,309,5805,95575,1516785,24206055,396475975, 6733084365,119143997490,2201649739310, 42514526708766,857750898213594,18068801884373310, 397038791150060850,9090755207499817170, 216635190303090215910]

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Last modified April 16 00:45 EDT 2024. Contains 371696 sequences. (Running on oeis4.)