A001854 - OEIS

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A001854 as a simple table

`n`		`a(n)`
`1`		`0`
`2`		`2`
`3`		`15`
`4`		`148`
`5`		`1785`
`6`		`26106`
`7`		`449701`
`8`		`8927192`
`9`		`200847681`
`10`		`5053782070`
`11`		`140679853941`
`12`		`4293235236324`
`13`		`142553671807729`
`14`		`5116962926162738`
`15`		`197459475792232725`
`16`		`8152354312656732976`
`17`		`358585728464893234305`
`18`		`16741214317684425260142`
`19`		`826842457727306803110997`
`20`		`43073414675338753123113980`

[0,2,15,148,1785,26106,449701,8927192,200847681, 5053782070,140679853941,4293235236324, 142553671807729,5116962926162738, 197459475792232725,8152354312656732976, 358585728464893234305,16741214317684425260142, 826842457727306803110997, 43073414675338753123113980]

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Last modified April 19 19:02 EDT 2024. Contains 371798 sequences. (Running on oeis4.)