A265945 - OEIS

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A265945 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`2`
`2`		`6`
`3`		`18`
`4`		`64`
`5`		`220`
`6`		`888`
`7`		`3192`
`8`		`15104`
`9`		`48096`
`10`		`338400`
`11`		`285120`
`12`		`13728768`
`13`		`-75484032`
`14`		`1327431168`
`15`		`-15621137280`
`16`		`232048220160`
`17`		`-3468200017920`
`18`		`56208508250112`
`19`		`-959557688285184`
`20`		`17344153658234880`
`21`		`-330228975428997120`
`22`		`6611419866845122560`
`23`		`-138844103855232061440`

[1,2,6,18,64,220,888,3192,15104,48096,338400, 285120,13728768,-75484032,1327431168,-15621137280, 232048220160,-3468200017920,56208508250112, -959557688285184,17344153658234880, -330228975428997120,6611419866845122560, -138844103855232061440]

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Last modified August 14 18:55 EDT 2024. Contains 375166 sequences. (Running on oeis4.)