A002978 - OEIS

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A002978 as a simple table

`n`		`a(n)`
`1`		`0`
`2`		`0`
`3`		`4`
`4`		`0`
`5`		`12`
`6`		`8`
`7`		`48`
`8`		`96`
`9`		`320`
`10`		`888`
`11`		`2748`
`12`		`8384`
`13`		`26340`
`14`		`83568`
`15`		`268864`
`16`		`873648`
`17`		`2865216`
`18`		`9470784`
`19`		`31525524`
`20`		`105594912`
`21`		`355673804`
`22`		`1204059144`
`23`		`4094727168`
`24`		`13983145888`
`25`		`47932777680`
`26`		`164881688088`
`27`		`568990371212`
`28`		`1969356192624`
`29`		`6834965581764`
`30`		`23782468159920`

[0,0,4,0,12,8,48,96,320,888,2748,8384,26340,83568, 268864,873648,2865216,9470784,31525524,105594912, 355673804,1204059144,4094727168,13983145888, 47932777680,164881688088,568990371212, 1969356192624,6834965581764,23782468159920]

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Last modified April 25 07:07 EDT 2024. Contains 371964 sequences. (Running on oeis4.)