A025261 - OEIS

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A025261 as a simple table

`n`		`a(n)`
`1`		`3`
`2`		`-2`
`3`		`1`
`4`		`3`
`5`		`7`
`6`		`16`
`7`		`40`
`8`		`111`
`9`		`327`
`10`		`984`
`11`		`2984`
`12`		`9120`
`13`		`28156`
`14`		`87830`
`15`		`276442`
`16`		`876443`
`17`		`2795523`
`18`		`8963668`
`19`		`28877692`
`20`		`93433104`
`21`		`303474772`
`22`		`989159058`
`23`		`3234373630`
`24`		`10606540108`
`25`		`34874855416`
`26`		`114951540690`
`27`		`379751773694`
`28`		`1257173264286`
`29`		`4170000218994`

[3,-2,1,3,7,16,40,111,327,984,2984,9120,28156, 87830,276442,876443,2795523,8963668,28877692, 93433104,303474772,989159058,3234373630, 10606540108,34874855416,114951540690,379751773694, 1257173264286,4170000218994]

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Last modified August 7 03:01 EDT 2024. Contains 375003 sequences. (Running on oeis4.)