A131656 - OEIS

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A131656 as a simple table

`n`		`a(n)`
`0`		`-1`
`1`		`3`
`2`		`0`
`3`		`3`
`4`		`5`
`5`		`18`
`6`		`66`
`7`		`298`
`8`		`1511`
`9`		`8670`
`10`		`55168`
`11`		`386394`
`12`		`2951673`
`13`		`24428654`
`14`		`217723390`
`15`		`2079109386`
`16`		`21177620171`
`17`		`229195610430`
`18`		`2626388037372`
`19`		`31768201320634`
`20`		`404485298533085`
`21`		`5407570127090958`
`22`		`75736453324821754`
`23`		`1108952444876609898`
`24`		`16943545270848408495`

[-1,3,0,3,5,18,66,298,1511,8670,55168,386394, 2951673,24428654,217723390,2079109386,21177620171, 229195610430,2626388037372,31768201320634, 404485298533085,5407570127090958, 75736453324821754,1108952444876609898, 16943545270848408495]

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Last modified August 24 20:58 EDT 2024. Contains 375417 sequences. (Running on oeis4.)