A216021 - OEIS

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A216021 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`1`
`3`		`3`
`4`		`1`
`5`		`3`
`6`		`11`
`7`		`50`
`8`		`1`
`9`		`2`
`10`		`9`
`11`		`33`
`12`		`129`
`13`		`550`
`14`		`2526`
`15`		`12445`
`16`		`1`
`17`		`2`
`18`		`8`
`19`		`26`
`20`		`86`
`21`		`302`
`22`		`1103`
`23`		`4216`
`24`		`16834`
`25`		`70064`
`26`		`303520`
`27`		`1366413`
`28`		`6383595`
`29`		`30907397`
`30`		`154895272`
`31`		`802588710`
`32`		`1`
`33`		`2`
`34`		`7`
`35`		`23`
`36`		`69`
`37`		`215`
`38`		`685`
`39`		`2242`
`40`		`7523`
`41`		`25881`
`42`		`91237`
`43`		`329377`
`44`		`1217078`
`45`		`4600595`
`46`		`17781207`
`47`		`70234475`

[1,1,3,1,3,11,50,1,2,9,33,129,550,2526,12445,1,2, 8,26,86,302,1103,4216,16834,70064,303520,1366413, 6383595,30907397,154895272,802588710,1,2,7,23,69, 215,685,2242,7523,25881,91237,329377,1217078, 4600595,17781207,70234475]

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Last modified September 5 12:10 EDT 2024. Contains 375696 sequences. (Running on oeis4.)