A019580 - OEIS

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A019580 as a simple table

`n`		`a(n)`
`4`		`1`
`5`		`20`
`6`		`375`
`7`		`7560`
`8`		`167825`
`9`		`4110120`
`10`		`110602800`
`11`		`3252075750`
`12`		`103881924300`
`13`		`3585467886000`
`14`		`133052005386300`
`15`		`5284678706307000`
`16`		`223761183682286250`
`17`		`10063370411081988000`
`18`		`479152851159102120000`
`19`		`24082014064135799772000`

[1,20,375,7560,167825,4110120,110602800, 3252075750,103881924300,3585467886000, 133052005386300,5284678706307000, 223761183682286250,10063370411081988000, 479152851159102120000,24082014064135799772000]

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Last modified April 16 18:51 EDT 2024. Contains 371750 sequences. (Running on oeis4.)