A116530 - OEIS

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A116530 as a simple table

`n`		`a(n)`
`1`		`20`
`2`		`60`
`3`		`180`
`4`		`540`
`5`		`1620`
`6`		`4860`
`7`		`14580`
`8`		`43740`
`9`		`131220`
`10`		`393660`
`11`		`1180980`
`12`		`3542940`
`13`		`10628820`
`14`		`31886460`
`15`		`95659380`
`16`		`286978140`
`17`		`860934420`
`18`		`2582803260`
`19`		`7748409780`
`20`		`23245229340`
`21`		`69735688020`
`22`		`209207064060`
`23`		`627621192180`
`24`		`1882863576540`

[20,60,180,540,1620,4860,14580,43740,131220, 393660,1180980,3542940,10628820,31886460,95659380, 286978140,860934420,2582803260,7748409780, 23245229340,69735688020,209207064060,627621192180, 1882863576540]

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Last modified April 18 12:53 EDT 2024. Contains 371780 sequences. (Running on oeis4.)