A027268 - OEIS

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A027268 as a simple table

`n`		`a(n)`
`1`		`0`
`2`		`6`
`3`		`20`
`4`		`180`
`5`		`644`
`6`		`5502`
`7`		`20292`
`8`		`174456`
`9`		`654632`
`10`		`5673140`
`11`		`21528000`
`12`		`187675644`
`13`		`717800628`
`14`		`6284986554`
`15`		`24178479500`
`16`		`212408191568`
`17`		`820811282352`
`18`		`7229648901024`
`19`		`28037230854096`
`20`		`247468885359240`
`21`		`962488105227160`
`22`		`8510025522045036`
`23`		`33177800527098040`
`24`		`293772371437293720`

[0,6,20,180,644,5502,20292,174456,654632,5673140, 21528000,187675644,717800628,6284986554, 24178479500,212408191568,820811282352, 7229648901024,28037230854096,247468885359240, 962488105227160,8510025522045036, 33177800527098040,293772371437293720]

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Last modified May 14 02:26 EDT 2024. Contains 372528 sequences. (Running on oeis4.)