A135507 - OEIS

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A135507 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`4`
`3`		`20`
`4`		`60`
`5`		`180`
`6`		`540`
`7`		`4860`
`8`		`19440`
`9`		`58320`
`10`		`174960`
`11`		`2274480`
`12`		`6823440`
`13`		`20470320`
`14`		`184232880`
`15`		`552698640`
`16`		`1658095920`
`17`		`31503822480`
`18`		`94511467440`
`19`		`283534402320`
`20`		`850603206960`
`21`		`7655428862640`
`22`		`99520575214320`
`23`		`2488014380358000`

[1,4,20,60,180,540,4860,19440,58320,174960, 2274480,6823440,20470320,184232880,552698640, 1658095920,31503822480,94511467440,283534402320, 850603206960,7655428862640,99520575214320, 2488014380358000]

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Last modified April 25 01:35 EDT 2024. Contains 371964 sequences. (Running on oeis4.)