A007415 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

A007415 as a simple table

`n`		`a(n)`
`0`		`0`
`1`		`1`
`2`		`-1`
`3`		`3`
`4`		`0`
`5`		`-30`
`6`		`90`
`7`		`-630`
`8`		`0`
`9`		`22680`
`10`		`-113400`
`11`		`1247400`
`12`		`0`
`13`		`-97297200`
`14`		`681080400`
`15`		`-10216206000`
`16`		`0`
`17`		`1389404016000`
`18`		`-12504636144000`
`19`		`237588086736000`
`20`		`0`
`21`		`-49893498214560000`
`22`		`548828480360160000`
`23`		`-12623055048283680000`
`24`		`0`
`25`		`3786916514485104000000`

[0,1,-1,3,0,-30,90,-630,0,22680,-113400,1247400,0, -97297200,681080400,-10216206000,0,1389404016000, -12504636144000,237588086736000,0, -49893498214560000,548828480360160000, -12623055048283680000,0,3786916514485104000000]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 18 08:27 EDT 2024. Contains 371769 sequences. (Running on oeis4.)