A013227 - OEIS

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A013227 as a simple table

`n`		`a(n)`
`0`		`0`
`1`		`0`
`2`		`-1`
`3`		`1`
`4`		`-6`
`5`		`15`
`6`		`-135`
`7`		`600`
`8`		`-6580`
`9`		`42805`
`10`		`-546525`
`11`		`4698450`
`12`		`-68473350`
`13`		`732163575`
`14`		`-12012875875`
`15`		`153571600000`
`16`		`-2805371985000`
`17`		`41710773599625`
`18`		`-840435196901625`
`19`		`14241298404498750`
`20`		`-313987574315496250`

[0,0,-1,1,-6,15,-135,600,-6580,42805,-546525, 4698450,-68473350,732163575,-12012875875, 153571600000,-2805371985000,41710773599625, -840435196901625,14241298404498750, -313987574315496250]

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Last modified September 8 17:11 EDT 2024. Contains 375753 sequences. (Running on oeis4.)