A009458 - OEIS

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A009458 as a simple table

`n`		`a(n)`
`0`		`0`
`1`		`0`
`2`		`2`
`3`		`-6`
`4`		`18`
`5`		`-60`
`6`		`214`
`7`		`-714`
`8`		`984`
`9`		`23040`
`10`		`-468880`
`11`		`7113040`
`12`		`-102747560`
`13`		`1501609200`
`14`		`-22698373400`
`15`		`358125772200`
`16`		`-5919450952000`
`17`		`102619545932800`
`18`		`-1865622384074400`
`19`		`35539903321740000`
`20`		`-708618759088892000`
`21`		`14768814409403208000`

[0,0,2,-6,18,-60,214,-714,984,23040,-468880, 7113040,-102747560,1501609200,-22698373400, 358125772200,-5919450952000,102619545932800, -1865622384074400,35539903321740000, -708618759088892000,14768814409403208000]

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Last modified May 15 08:26 EDT 2024. Contains 372538 sequences. (Running on oeis4.)