A026570 - OEIS

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A026570 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`1`
`3`		`4`
`4`		`7`
`5`		`20`
`6`		`43`
`7`		`111`
`8`		`259`
`9`		`648`
`10`		`1565`
`11`		`3885`
`12`		`9533`
`13`		`23662`
`14`		`58547`
`15`		`145630`
`16`		`362151`
`17`		`903110`
`18`		`2253615`
`19`		`5633359`
`20`		`14094035`
`21`		`35304658`
`22`		`88511733`
`23`		`222115782`
`24`		`557819793`
`25`		`1401987930`
`26`		`3526066273`
`27`		`8874034647`
`28`		`22346581133`
`29`		`56304982154`

[1,1,4,7,20,43,111,259,648,1565,3885,9533,23662, 58547,145630,362151,903110,2253615,5633359, 14094035,35304658,88511733,222115782,557819793, 1401987930,3526066273,8874034647,22346581133, 56304982154]

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Last modified May 28 04:02 EDT 2024. Contains 372900 sequences. (Running on oeis4.)