A024421 - OEIS

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A024421 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`1`
`3`		`4`
`4`		`14`
`5`		`84`
`6`		`516`
`7`		`3936`
`8`		`32544`
`9`		`305280`
`10`		`3123360`
`11`		`35112960`
`12`		`427559040`
`13`		`5629236480`
`14`		`79568697600`
`15`		`1203310080000`
`16`		`19381043404800`
`17`		`331357630464000`
`18`		`5993331073228800`
`19`		`114354145640448000`
`20`		`2295517848809472000`
`21`		`48363337839624192000`

[1,1,1,4,14,84,516,3936,32544,305280,3123360, 35112960,427559040,5629236480,79568697600, 1203310080000,19381043404800,331357630464000, 5993331073228800,114354145640448000, 2295517848809472000,48363337839624192000]

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Last modified April 24 15:37 EDT 2024. Contains 371960 sequences. (Running on oeis4.)