A173222 - OEIS

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A173222 as a simple table

`n`		`a(n)`
`0`		`0`
`1`		`4`
`2`		`18`
`3`		`672`
`4`		`51600`
`5`		`6883920`
`6`		`1399989780`
`7`		`401060653056`
`8`		`153389081849472`
`9`		`75336980135472000`
`10`		`46137556536570417600`
`11`		`34425740593629308436480`
`12`		`30717476677184291740437120`
`13`		`32275806213061043955592058880`

[0,4,18,672,51600,6883920,1399989780,401060653056, 153389081849472,75336980135472000, 46137556536570417600,34425740593629308436480, 30717476677184291740437120, 32275806213061043955592058880]

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Last modified April 25 11:06 EDT 2024. Contains 371967 sequences. (Running on oeis4.)