A081881 - OEIS

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A081881 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`2`
`3`		`4`
`4`		`10`
`5`		`26`
`6`		`69`
`7`		`186`
`8`		`504`
`9`		`1369`
`10`		`3720`
`11`		`10111`
`12`		`27483`
`13`		`74705`
`14`		`203068`
`15`		`551995`
`16`		`1500477`
`17`		`4078718`
`18`		`11087104`
`19`		`30137872`
`20`		`81923228`
`21`		`222690421`
`22`		`605335323`
`23`		`1645472007`
`24`		`4472856655`
`25`		`12158484965`
`26`		`33050188741`
`27`		`89839727480`
`28`		`244209698681`
`29`		`663830786257`
`30`		`1804479163453`
`31`		`4905082919846`

[1,2,4,10,26,69,186,504,1369,3720,10111,27483, 74705,203068,551995,1500477,4078718,11087104, 30137872,81923228,222690421,605335323,1645472007, 4472856655,12158484965,33050188741,89839727480, 244209698681,663830786257,1804479163453, 4905082919846]

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Last modified September 5 21:04 EDT 2024. Contains 375700 sequences. (Running on oeis4.)