A013161 - OEIS

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A013161 as a simple table

`n`		`a(n)`
`0`		`0`
`1`		`2`
`2`		`-1`
`3`		`12`
`4`		`-30`
`5`		`270`
`6`		`-1215`
`7`		`12600`
`8`		`-81900`
`9`		`992250`
`10`		`-8434125`
`11`		`117879300`
`12`		`-1237732650`
`13`		`19666196550`
`14`		`-245827456875`
`15`		`4382752374000`
`16`		`-63549909423000`
`17`		`1257302087291250`
`18`		`-20745484440305625`
`19`		`451231749105637500`

[0,2,-1,12,-30,270,-1215,12600,-81900,992250, -8434125,117879300,-1237732650,19666196550, -245827456875,4382752374000,-63549909423000, 1257302087291250,-20745484440305625, 451231749105637500]

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Last modified April 23 20:33 EDT 2024. Contains 371916 sequences. (Running on oeis4.)