A006781 - OEIS

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A006781 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`2`
`3`		`7`
`4`		`32`
`5`		`168`
`6`		`970`
`7`		`5984`
`8`		`38786`
`9`		`261160`
`10`		`1812630`
`11`		`12895360`
`12`		`93638634`
`13`		`691793872`
`14`		`5186869122`
`15`		`39388514522`
`16`		`302457399674`
`17`		`2345362579172`
`18`		`18345337742960`
`19`		`144612959167806`
`20`		`1147920496989270`
`21`		`9169516892088470`

[1,2,7,32,168,970,5984,38786,261160,1812630, 12895360,93638634,691793872,5186869122, 39388514522,302457399674,2345362579172, 18345337742960,144612959167806,1147920496989270, 9169516892088470]

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Last modified April 19 17:39 EDT 2024. Contains 371797 sequences. (Running on oeis4.)