A003580 - OEIS

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A003580 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`2`
`2`		`12`
`3`		`120`
`4`		`1424`
`5`		`19488`
`6`		`307904`
`7`		`5539712`
`8`		`111259904`
`9`		`2454487552`
`10`		`58847153152`
`11`		`1522019629056`
`12`		`42209521995776`
`13`		`1248370355347456`
`14`		`39186678731423744`
`15`		`1300179383923212288`
`16`		`45436201241711542272`
`17`		`1667242078056889843712`
`18`		`64063345344029286727680`

[1,2,12,120,1424,19488,307904,5539712,111259904, 2454487552,58847153152,1522019629056, 42209521995776,1248370355347456,39186678731423744, 1300179383923212288,45436201241711542272, 1667242078056889843712,64063345344029286727680]

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Last modified April 18 22:18 EDT 2024. Contains 371782 sequences. (Running on oeis4.)