A189845 - OEIS

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A189845 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`4`
`3`		`22`
`4`		`150`
`5`		`1200`
`6`		`10922`
`7`		`110844`
`8`		`1236326`
`9`		`14990380`
`10`		`195895202`
`11`		`2740062260`
`12`		`40789039078`
`13`		`643118787708`
`14`		`10696195808162`
`15`		`186993601880756`
`16`		`3425688601198118`
`17`		`65586903427253532`
`18`		`1309155642001921026`
`19`		`27185548811026532692`
`20`		`586164185027289760806`

[1,1,4,22,150,1200,10922,110844,1236326,14990380, 195895202,2740062260,40789039078,643118787708, 10696195808162,186993601880756,3425688601198118, 65586903427253532,1309155642001921026, 27185548811026532692,586164185027289760806]

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Last modified April 24 04:02 EDT 2024. Contains 371918 sequences. (Running on oeis4.)