A321111 - OEIS

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A321111 as a simple table

`n`		`a(n)`
`4`		`4`
`5`		`20`
`6`		`108`
`7`		`586`
`8`		`3098`
`9`		`16230`
`10`		`85150`
`11`		`446972`
`12`		`2349616`
`13`		`12376800`
`14`		`65353448`
`15`		`345933358`
`16`		`1835637246`
`17`		`9764363438`
`18`		`52064375292`
`19`		`278256581910`
`20`		`1490475179006`
`21`		`8000983513636`
`22`		`43039329754332`
`23`		`231982689315468`
`24`		`1252791611642654`
`25`		`6777998215153164`
`26`		`36735901427197962`

[4,20,108,586,3098,16230,85150,446972,2349616, 12376800,65353448,345933358,1835637246,9764363438, 52064375292,278256581910,1490475179006, 8000983513636,43039329754332,231982689315468, 1252791611642654,6777998215153164, 36735901427197962]

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Last modified April 23 03:30 EDT 2024. Contains 371906 sequences. (Running on oeis4.)