A009152 - OEIS

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A009152 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`-1`
`2`		`2`
`3`		`-4`
`4`		`12`
`5`		`-36`
`6`		`128`
`7`		`-456`
`8`		`1872`
`9`		`-7888`
`10`		`37600`
`11`		`-184064`
`12`		`990784`
`13`		`-5444544`
`14`		`32333824`
`15`		`-195982208`
`16`		`1272660224`
`17`		`-8441139456`
`18`		`59527313920`
`19`		`-428299217920`
`20`		`3252626013184`
`21`		`-25165446157312`
`22`		`204354574172160`
`23`		`-1689266143553536`

[1,-1,2,-4,12,-36,128,-456,1872,-7888,37600, -184064,990784,-5444544,32333824,-195982208, 1272660224,-8441139456,59527313920,-428299217920, 3252626013184,-25165446157312,204354574172160, -1689266143553536]

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Last modified April 23 11:35 EDT 2024. Contains 371912 sequences. (Running on oeis4.)