A186996 - OEIS

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A186996 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`2`
`3`		`6`
`4`		`20`
`5`		`72`
`6`		`273`
`7`		`1073`
`8`		`4333`
`9`		`17869`
`10`		`74937`
`11`		`318601`
`12`		`1370113`
`13`		`5949201`
`14`		`26046727`
`15`		`114857599`
`16`		`509669295`
`17`		`2274146599`
`18`		`10197234215`
`19`		`45925646367`
`20`		`207656685443`
`21`		`942302814363`
`22`		`4289903653615`
`23`		`19588180438263`
`24`		`89685571667763`

[1,1,2,6,20,72,273,1073,4333,17869,74937,318601, 1370113,5949201,26046727,114857599,509669295, 2274146599,10197234215,45925646367,207656685443, 942302814363,4289903653615,19588180438263, 89685571667763]

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Last modified April 25 06:49 EDT 2024. Contains 371964 sequences. (Running on oeis4.)