A061439 - OEIS

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A061439 as a simple table

`n`		`a(n)`
`1`		`2`
`2`		`4`
`3`		`9`
`4`		`21`
`5`		`46`
`6`		`99`
`7`		`215`
`8`		`464`
`9`		`999`
`10`		`2154`
`11`		`4641`
`12`		`9999`
`13`		`21544`
`14`		`46415`
`15`		`99999`
`16`		`215443`
`17`		`464158`
`18`		`999999`
`19`		`2154434`
`20`		`4641588`
`21`		`9999999`
`22`		`21544346`
`23`		`46415888`
`24`		`99999999`
`25`		`215443469`
`26`		`464158883`
`27`		`999999999`
`28`		`2154434690`
`29`		`4641588833`
`30`		`9999999999`

[2,4,9,21,46,99,215,464,999,2154,4641,9999,21544, 46415,99999,215443,464158,999999,2154434,4641588, 9999999,21544346,46415888,99999999,215443469, 464158883,999999999,2154434690,4641588833, 9999999999]

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Last modified September 9 21:41 EDT 2024. Contains 375765 sequences. (Running on oeis4.)