A172391 - OEIS

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A172391 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`8`
`2`		`12`
`3`		`0`
`4`		`28`
`5`		`0`
`6`		`264`
`7`		`0`
`8`		`3720`
`9`		`0`
`10`		`63840`
`11`		`0`
`12`		`1232432`
`13`		`0`
`14`		`25731216`
`15`		`0`
`16`		`568130552`
`17`		`0`
`18`		`13081215840`
`19`		`0`
`20`		`311178567648`
`21`		`0`
`22`		`7597974517056`
`23`		`0`
`24`		`189518147463232`
`25`		`0`
`26`		`4811962763222784`
`27`		`0`
`28`		`124028853694440640`
`29`		`0`
`30`		`3238304402221646880`
`31`		`0`

[1,8,12,0,28,0,264,0,3720,0,63840,0,1232432,0, 25731216,0,568130552,0,13081215840,0,311178567648, 0,7597974517056,0,189518147463232,0, 4811962763222784,0,124028853694440640,0, 3238304402221646880,0]

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Last modified April 24 13:16 EDT 2024. Contains 371951 sequences. (Running on oeis4.)