A012657 - OEIS

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A012657 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`0`
`2`		`0`
`3`		`0`
`4`		`12`
`5`		`-60`
`6`		`90`
`7`		`-420`
`8`		`19040`
`9`		`-245952`
`10`		`1660680`
`11`		`-12025200`
`12`		`266431176`
`13`		`-5435780064`
`14`		`74009711776`
`15`		`-910402889760`
`16`		`17440536006400`
`17`		`-420186078195584`
`18`		`8609810161550016`
`19`		`-157606804730862720`

[1,0,0,0,12,-60,90,-420,19040,-245952,1660680, -12025200,266431176,-5435780064,74009711776, -910402889760,17440536006400,-420186078195584, 8609810161550016,-157606804730862720]

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Last modified April 30 14:58 EDT 2024. Contains 372134 sequences. (Running on oeis4.)