A007239 - OEIS

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A007239 as a simple table

`n`		`a(n)`
`1`		`3`
`2`		`6`
`3`		`12`
`4`		`24`
`5`		`54`
`6`		`138`
`7`		`378`
`8`		`1080`
`9`		`3186`
`10`		`9642`
`11`		`29784`
`12`		`93552`
`13`		`297966`
`14`		`960294`
`15`		`3126408`
`16`		`10268688`
`17`		`33989388`
`18`		`113277582`
`19`		`379833906`
`20`		`1280618784`
`21`		`4339003044`
`22`		`14767407522`
`23`		`50464951224`
`24`		`173099580168`
`25`		`595786322292`
`26`		`2057106617226`
`27`		`7123467773790`
`28`		`24734460619704`

[3,6,12,24,54,138,378,1080,3186,9642,29784,93552, 297966,960294,3126408,10268688,33989388,113277582, 379833906,1280618784,4339003044,14767407522, 50464951224,173099580168,595786322292, 2057106617226,7123467773790,24734460619704]

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Last modified April 24 00:30 EDT 2024. Contains 371917 sequences. (Running on oeis4.)