A087531 - OEIS

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A087531 as a simple table

`n`		`a(n)`
`0`		`37`
`1`		`73`
`2`		`33373777`
`3`		`33773737`
`4`		`37373773`
`5`		`37377337`
`6`		`73337377`
`7`		`73337773`
`8`		`73373737`
`9`		`73773373`
`10`		`77337373`
`11`		`77733373`
`12`		`3337737737`
`13`		`3337777337`
`14`		`3377733773`
`15`		`3733377377`
`16`		`3733733777`
`17`		`3737733773`
`18`		`3773333777`
`19`		`3773337377`
`20`		`3773733737`
`21`		`3777333773`

[37,73,33373777,33773737,37373773,37377337, 73337377,73337773,73373737,73773373,77337373, 77733373,3337737737,3337777337,3377733773, 3733377377,3733733777,3737733773,3773333777, 3773337377,3773733737,3777333773]

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Last modified April 23 12:44 EDT 2024. Contains 371913 sequences. (Running on oeis4.)