A023871 - OEIS

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A023871 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`5`
`3`		`14`
`4`		`40`
`5`		`101`
`6`		`266`
`7`		`649`
`8`		`1593`
`9`		`3765`
`10`		`8813`
`11`		`20168`
`12`		`45649`
`13`		`101591`
`14`		`223654`
`15`		`486046`
`16`		`1045541`
`17`		`2225167`
`18`		`4692421`
`19`		`9804734`
`20`		`20318249`
`21`		`41766843`
`22`		`85218989`
`23`		`172628766`
`24`		`347338117`
`25`		`694330731`
`26`		`1379437080`
`27`		`2724353422`
`28`		`5350185097`
`29`		`10449901555`
`30`		`20304465729`
`31`		`39254599832`

[1,1,5,14,40,101,266,649,1593,3765,8813,20168, 45649,101591,223654,486046,1045541,2225167, 4692421,9804734,20318249,41766843,85218989, 172628766,347338117,694330731,1379437080, 2724353422,5350185097,10449901555,20304465729, 39254599832]

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Last modified April 23 15:20 EDT 2024. Contains 371916 sequences. (Running on oeis4.)