A261768 - OEIS

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A261768 as a simple table

`n`		`a(n)`
`1`		`0`
`2`		`-1`
`3`		`-1`
`4`		`0`
`5`		`399`
`6`		`28`
`7`		`162287`
`8`		`61440`
`9`		`9546255`
`10`		`1038576`
`11`		`74062575399`
`12`		`16756480`
`13`		`83695120256591`
`14`		`78356634560`
`15`		`35181809198207`
`16`		`281470681743360`
`17`		`246486713303685957375`
`18`		`101559922656192`
`19`		`604107995057426434824791`
`20`		`1152921479006846976`

[0,-1,-1,0,399,28,162287,61440,9546255,1038576, 74062575399,16756480,83695120256591,78356634560, 35181809198207,281470681743360, 246486713303685957375,101559922656192, 604107995057426434824791,1152921479006846976]

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Last modified August 29 18:55 EDT 2024. Contains 375518 sequences. (Running on oeis4.)