A009432 - OEIS

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A009432 as a simple table

`n`		`a(n)`
`0`		`0`
`1`		`1`
`2`		`-1`
`3`		`-1`
`4`		`0`
`5`		`9`
`6`		`-45`
`7`		`447`
`8`		`-2744`
`9`		`17553`
`10`		`-171585`
`11`		`1757535`
`12`		`-19723176`
`13`		`245370969`
`14`		`-3189613245`
`15`		`44636677407`
`16`		`-674857335120`
`17`		`10851333193249`
`18`		`-185485926579489`
`19`		`3356664148618047`
`20`		`-64009236131219760`
`21`		`1284480775318317225`

[0,1,-1,-1,0,9,-45,447,-2744,17553,-171585, 1757535,-19723176,245370969,-3189613245, 44636677407,-674857335120,10851333193249, -185485926579489,3356664148618047, -64009236131219760,1284480775318317225]

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Last modified April 24 16:34 EDT 2024. Contains 371961 sequences. (Running on oeis4.)