A009680 - OEIS

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A009680 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`0`
`3`		`12`
`4`		`336`
`5`		`15760`
`6`		`1144704`
`7`		`117385920`
`8`		`16206548736`
`9`		`2897776619776`
`10`		`651455951990784`
`11`		`179856295521635328`
`12`		`59822762558026321920`
`13`		`23594335379577078059008`
`14`		`10887666560228980302446592`

[1,0,12,336,15760,1144704,117385920,16206548736, 2897776619776,651455951990784,179856295521635328, 59822762558026321920,23594335379577078059008, 10887666560228980302446592]

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Last modified April 25 08:27 EDT 2024. Contains 371964 sequences. (Running on oeis4.)