A221880 - OEIS

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A221880 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`2`
`3`		`8`
`4`		`22`
`5`		`57`
`6`		`136`
`7`		`315`
`8`		`710`
`9`		`1577`
`10`		`3460`
`11`		`7527`
`12`		`16258`
`13`		`34917`
`14`		`74624`
`15`		`158819`
`16`		`336766`
`17`		`711777`
`18`		`1500028`
`19`		`3152991`
`20`		`6611834`
`21`		`13835357`
`22`		`28894072`
`23`		`60234843`
`24`		`125363062`
`25`		`260512857`
`26`		`540599156`
`27`		`1120345175`
`28`		`2318984050`
`29`		`4794555477`
`30`		`9902285680`
`31`		`20430920787`
`32`		`42114540398`

[1,2,8,22,57,136,315,710,1577,3460,7527,16258, 34917,74624,158819,336766,711777,1500028,3152991, 6611834,13835357,28894072,60234843,125363062, 260512857,540599156,1120345175,2318984050, 4794555477,9902285680,20430920787,42114540398]

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Last modified April 24 17:02 EDT 2024. Contains 371962 sequences. (Running on oeis4.)