A012587 - OEIS

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A012587 as a simple table

`n`		`a(n)`
`0`		`0`
`1`		`1`
`2`		`2`
`3`		`4`
`4`		`24`
`5`		`180`
`6`		`1240`
`7`		`10456`
`8`		`112896`
`9`		`1316816`
`10`		`16378528`
`11`		`229634304`
`12`		`3569726336`
`13`		`59315089600`
`14`		`1055150016128`
`15`		`20254767489152`
`16`		`415619313491968`
`17`		`9028238025838848`
`18`		`207506148418183680`
`19`		`5043727679716764672`

[0,1,2,4,24,180,1240,10456,112896,1316816, 16378528,229634304,3569726336,59315089600, 1055150016128,20254767489152,415619313491968, 9028238025838848,207506148418183680, 5043727679716764672]

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Last modified April 24 02:46 EDT 2024. Contains 371917 sequences. (Running on oeis4.)