A025239 - OEIS

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A025239 as a simple table

`n`		`a(n)`
`1`		`2`
`2`		`3`
`3`		`6`
`4`		`21`
`5`		`78`
`6`		`318`
`7`		`1356`
`8`		`5997`
`9`		`27222`
`10`		`126138`
`11`		`594132`
`12`		`2836290`
`13`		`13692300`
`14`		`66729180`
`15`		`327855768`
`16`		`1622216829`
`17`		`8076311142`
`18`		`40427919714`
`19`		`203353800324`
`20`		`1027318915254`
`21`		`5210182030308`
`22`		`26517609163812`
`23`		`135397544040744`
`24`		`693364054299474`

[2,3,6,21,78,318,1356,5997,27222,126138,594132, 2836290,13692300,66729180,327855768,1622216829, 8076311142,40427919714,203353800324,1027318915254, 5210182030308,26517609163812,135397544040744, 693364054299474]

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Last modified April 16 01:40 EDT 2024. Contains 371696 sequences. (Running on oeis4.)