A181939 - OEIS

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A181939 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`2`
`3`		`8`
`4`		`56`
`5`		`552`
`6`		`7202`
`7`		`118456`
`8`		`2369922`
`9`		`56230544`
`10`		`1552048082`
`11`		`49080888144`
`12`		`1756527398738`
`13`		`70427165428648`
`14`		`3136819046716266`
`15`		`154090456510590632`
`16`		`8296738497931578818`
`17`		`487014208107376581984`
`18`		`31018372994440588508642`
`19`		`2134584265273475942046304`

[1,1,2,8,56,552,7202,118456,2369922,56230544, 1552048082,49080888144,1756527398738, 70427165428648,3136819046716266, 154090456510590632,8296738497931578818, 487014208107376581984,31018372994440588508642, 2134584265273475942046304]

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Last modified April 25 07:07 EDT 2024. Contains 371964 sequences. (Running on oeis4.)