A009351 - OEIS

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A009351 as a simple table

`n`		`a(n)`
`0`		`0`
`1`		`1`
`2`		`-1`
`3`		`0`
`4`		`-4`
`5`		`20`
`6`		`-121`
`7`		`896`
`8`		`-7344`
`9`		`68304`
`10`		`-711721`
`11`		`8200192`
`12`		`-103603204`
`13`		`1424807488`
`14`		`-21191898001`
`15`		`339004274688`
`16`		`-5804468899584`
`17`		`105924311382272`
`18`		`-2052443682726961`
`19`		`42085719065821184`
`20`		`-910506730330968484`

[0,1,-1,0,-4,20,-121,896,-7344,68304,-711721, 8200192,-103603204,1424807488,-21191898001, 339004274688,-5804468899584,105924311382272, -2052443682726961,42085719065821184, -910506730330968484]

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Last modified April 23 16:40 EDT 2024. Contains 371916 sequences. (Running on oeis4.)