A087213 - OEIS

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A087213 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`0`
`2`		`0`
`3`		`4`
`4`		`-4`
`5`		`20`
`6`		`-20`
`7`		`84`
`8`		`-84`
`9`		`340`
`10`		`-340`
`11`		`1364`
`12`		`-1364`
`13`		`5460`
`14`		`-5460`
`15`		`21844`
`16`		`-21844`
`17`		`87380`
`18`		`-87380`
`19`		`349524`
`20`		`-349524`
`21`		`1398100`
`22`		`-1398100`
`23`		`5592404`
`24`		`-5592404`
`25`		`22369620`
`26`		`-22369620`
`27`		`89478484`
`28`		`-89478484`
`29`		`357913940`
`30`		`-357913940`
`31`		`1431655764`
`32`		`-1431655764`
`33`		`5726623060`

[1,0,0,4,-4,20,-20,84,-84,340,-340,1364,-1364, 5460,-5460,21844,-21844,87380,-87380,349524, -349524,1398100,-1398100,5592404,-5592404, 22369620,-22369620,89478484,-89478484,357913940, -357913940,1431655764,-1431655764,5726623060]

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Last modified April 23 13:02 EDT 2024. Contains 371913 sequences. (Running on oeis4.)