A030228 - OEIS

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A030228 as a simple table

`n`		`a(n)`
`0`		`0`
`1`		`0`
`2`		`0`
`3`		`0`
`4`		`2`
`5`		`6`
`6`		`25`
`7`		`88`
`8`		`335`
`9`		`1215`
`10`		`4534`
`11`		`16823`
`12`		`63159`
`13`		`237679`
`14`		`900341`
`15`		`3423201`
`16`		`13073163`
`17`		`50095285`
`18`		`192599091`
`19`		`742576616`
`20`		`2870584814`
`21`		`11122879867`
`22`		`43191525139`
`23`		`168046317330`
`24`		`654998425237`
`25`		`2557224396342`
`26`		`9999083912711`
`27`		`39153000738695`
`28`		`153511081627903`

[0,0,0,0,2,6,25,88,335,1215,4534,16823,63159, 237679,900341,3423201,13073163,50095285,192599091, 742576616,2870584814,11122879867,43191525139, 168046317330,654998425237,2557224396342, 9999083912711,39153000738695,153511081627903]

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Last modified April 19 19:02 EDT 2024. Contains 371798 sequences. (Running on oeis4.)