A239839 - OEIS

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A239839 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`4`
`3`		`18`
`4`		`168`
`5`		`1560`
`6`		`20880`
`7`		`267120`
`8`		`5080320`
`9`		`93623040`
`10`		`2184537600`
`11`		`49896000000`
`12`		`1451853849600`
`13`		`41739720422400`
`14`		`1426847092070400`
`15`		`47989033956864000`
`16`		`1919268439216128000`
`17`		`76229151152394240000`
`18`		`3471527082588364800000`
`19`		`156226856133456396288000`

[1,1,4,18,168,1560,20880,267120,5080320,93623040, 2184537600,49896000000,1451853849600, 41739720422400,1426847092070400,47989033956864000, 1919268439216128000,76229151152394240000, 3471527082588364800000,156226856133456396288000]

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Last modified April 19 16:52 EDT 2024. Contains 371794 sequences. (Running on oeis4.)