A049140 - OEIS

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A049140 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`1`
`3`		`2`
`4`		`6`
`5`		`20`
`6`		`70`
`7`		`256`
`8`		`969`
`9`		`3762`
`10`		`14894`
`11`		`59904`
`12`		`244088`
`13`		`1005452`
`14`		`4180096`
`15`		`17516936`
`16`		`73913705`
`17`		`313774854`
`18`		`1339162028`
`19`		`5742691704`
`20`		`24731501410`
`21`		`106919054880`
`22`		`463844340060`
`23`		`2018673093000`
`24`		`8810852089650`
`25`		`38558866555248`

[1,1,2,6,20,70,256,969,3762,14894,59904,244088, 1005452,4180096,17516936,73913705,313774854, 1339162028,5742691704,24731501410,106919054880, 463844340060,2018673093000,8810852089650, 38558866555248]

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Last modified April 23 20:33 EDT 2024. Contains 371916 sequences. (Running on oeis4.)