A020459 - OEIS

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A020459 as a simple table

`n`		`a(n)`
`1`		`2`
`2`		`7`
`3`		`227`
`4`		`277`
`5`		`727`
`6`		`2777`
`7`		`7727`
`8`		`22277`
`9`		`22727`
`10`		`22777`
`11`		`27277`
`12`		`72227`
`13`		`72277`
`14`		`72727`
`15`		`272227`
`16`		`272777`
`17`		`727777`
`18`		`777277`
`19`		`2227727`
`20`		`2227777`
`21`		`2272727`
`22`		`2277727`
`23`		`2727727`
`24`		`2772227`
`25`		`7272227`
`26`		`7722277`
`27`		`7727777`
`28`		`7772777`
`29`		`7777727`
`30`		`22227277`
`31`		`22272277`

[2,7,227,277,727,2777,7727,22277,22727,22777, 27277,72227,72277,72727,272227,272777,727777, 777277,2227727,2227777,2272727,2277727,2727727, 2772227,7272227,7722277,7727777,7772777,7777727, 22227277,22272277]

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Last modified April 24 07:06 EDT 2024. Contains 371920 sequences. (Running on oeis4.)