A045720 - OEIS

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A045720 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`9`
`2`		`57`
`3`		`312`
`4`		`1578`
`5`		`7599`
`6`		`35401`
`7`		`161052`
`8`		`719790`
`9`		`3173090`
`10`		`13836426`
`11`		`59803104`
`12`		`256596276`
`13`		`1094249019`
`14`		`4642178601`
`15`		`19605872724`
`16`		`82483419846`
`17`		`345839048094`
`18`		`1445715336366`
`19`		`6027524015664`
`20`		`25070662980876`
`21`		`104056307673654`

[1,9,57,312,1578,7599,35401,161052,719790,3173090, 13836426,59803104,256596276,1094249019,4642178601, 19605872724,82483419846,345839048094, 1445715336366,6027524015664,25070662980876, 104056307673654]

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Last modified April 23 18:16 EDT 2024. Contains 371916 sequences. (Running on oeis4.)