A109517 - OEIS

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A109517 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`2`
`3`		`18`
`4`		`252`
`5`		`4880`
`6`		`120750`
`7`		`3639384`
`8`		`129365880`
`9`		`5298720768`
`10`		`245738908890`
`11`		`12728860100000`
`12`		`728372947109940`
`13`		`45631105330876416`
`14`		`3106354479972026374`
`15`		`228329428483544787840`
`16`		`18022862954171193750000`
`17`		`1520481402538463932186624`
`18`		`136531862779634547726146994`

[1,2,18,252,4880,120750,3639384,129365880, 5298720768,245738908890,12728860100000, 728372947109940,45631105330876416, 3106354479972026374,228329428483544787840, 18022862954171193750000,1520481402538463932186624, 136531862779634547726146994]

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Last modified April 17 23:23 EDT 2024. Contains 371767 sequences. (Running on oeis4.)