A077921 - OEIS

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A077921 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`-1`
`2`		`4`
`3`		`-8`
`4`		`21`
`5`		`-49`
`6`		`120`
`7`		`-288`
`8`		`697`
`9`		`-1681`
`10`		`4060`
`11`		`-9800`
`12`		`23661`
`13`		`-57121`
`14`		`137904`
`15`		`-332928`
`16`		`803761`
`17`		`-1940449`
`18`		`4684660`
`19`		`-11309768`
`20`		`27304197`
`21`		`-65918161`
`22`		`159140520`
`23`		`-384199200`
`24`		`927538921`
`25`		`-2239277041`
`26`		`5406093004`
`27`		`-13051463048`
`28`		`31509019101`
`29`		`-76069501249`
`30`		`183648021600`

[1,-1,4,-8,21,-49,120,-288,697,-1681,4060,-9800, 23661,-57121,137904,-332928,803761,-1940449, 4684660,-11309768,27304197,-65918161,159140520, -384199200,927538921,-2239277041,5406093004, -13051463048,31509019101,-76069501249, 183648021600]

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Last modified April 24 11:49 EDT 2024. Contains 371936 sequences. (Running on oeis4.)