A009406 - OEIS

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A009406 as a simple table

`n`		`a(n)`
`0`		`0`
`1`		`1`
`2`		`-1`
`3`		`-1`
`4`		`0`
`5`		`29`
`6`		`-105`
`7`		`307`
`8`		`-2744`
`9`		`27417`
`10`		`-236025`
`11`		`2249895`
`12`		`-25156296`
`13`		`306281013`
`14`		`-3983598801`
`15`		`55800877467`
`16`		`-839348702160`
`17`		`13462454942385`
`18`		`-229273833323025`
`19`		`4133677629311823`
`20`		`-78661216493101680`
`21`		`1575432052386178509`

[0,1,-1,-1,0,29,-105,307,-2744,27417,-236025, 2249895,-25156296,306281013,-3983598801, 55800877467,-839348702160,13462454942385, -229273833323025,4133677629311823, -78661216493101680,1575432052386178509]

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Last modified September 1 14:13 EDT 2024. Contains 375591 sequences. (Running on oeis4.)