A082989 - OEIS

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A082989 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`0`
`2`		`0`
`3`		`1`
`4`		`4`
`5`		`13`
`6`		`42`
`7`		`139`
`8`		`470`
`9`		`1616`
`10`		`5632`
`11`		`19852`
`12`		`70654`
`13`		`253559`
`14`		`916558`
`15`		`3334211`
`16`		`12197142`
`17`		`44842184`
`18`		`165597008`
`19`		`613991206`
`20`		`2284809072`
`21`		`8530458154`
`22`		`31945128628`
`23`		`119960276246`
`24`		`451621453764`
`25`		`1704240175868`
`26`		`6445111657272`

[1,0,0,1,4,13,42,139,470,1616,5632,19852,70654, 253559,916558,3334211,12197142,44842184,165597008, 613991206,2284809072,8530458154,31945128628, 119960276246,451621453764,1704240175868, 6445111657272]

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Last modified April 24 15:57 EDT 2024. Contains 371961 sequences. (Running on oeis4.)