A087511 - OEIS

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A087511 as a simple table

`n`		`a(n)`
`1`		`13`
`2`		`31`
`3`		`11313331`
`4`		`11333131`
`5`		`13111333`
`6`		`13131133`
`7`		`13131331`
`8`		`13133311`
`9`		`13311313`
`10`		`31133131`
`11`		`33113131`
`12`		`1113131333`
`13`		`1131131333`
`14`		`1131311333`
`15`		`1131331133`
`16`		`1133111333`
`17`		`1133113133`
`18`		`1133133311`
`19`		`1133311313`
`20`		`1133313113`
`21`		`1133313131`

[13,31,11313331,11333131,13111333,13131133, 13131331,13133311,13311313,31133131,33113131, 1113131333,1131131333,1131311333,1131331133, 1133111333,1133113133,1133133311,1133311313, 1133313113,1133313131]

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Last modified April 24 15:36 EDT 2024. Contains 371960 sequences. (Running on oeis4.)