A261484 - OEIS

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A261484 as a simple table

`n`		`a(n)`
`8`		`1`
`9`		`18`
`10`		`210`
`11`		`1980`
`12`		`16467`
`13`		`126126`
`14`		`912338`
`15`		`6332055`
`16`		`42615547`
`17`		`280182355`
`18`		`1809148533`
`19`		`11517941151`
`20`		`72515126734`
`21`		`452500330899`
`22`		`2803547693199`
`23`		`17270035728605`
`24`		`105888136423278`
`25`		`646765377652715`
`26`		`3938163632325325`
`27`		`23918395342393710`
`28`		`144963673674486886`

[1,18,210,1980,16467,126126,912338,6332055, 42615547,280182355,1809148533,11517941151, 72515126734,452500330899,2803547693199, 17270035728605,105888136423278,646765377652715, 3938163632325325,23918395342393710, 144963673674486886]

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Last modified April 25 05:56 EDT 2024. Contains 371964 sequences. (Running on oeis4.)