A089875 - OEIS

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A089875 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`1`
`3`		`3`
`4`		`3`
`5`		`15`
`6`		`30`
`7`		`180`
`8`		`3780`
`9`		`291060`
`10`		`3783780`
`11`		`70982929216999800`

[1,1,1,3,3,15,30,180,3780,291060,3783780, 70982929216999800]

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Last modified May 20 04:38 EDT 2013. Contains 225447 sequences.