A020456 - OEIS

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A020456 as a simple table

`n`		`a(n)`
`1`		`11`
`2`		`181`
`3`		`811`
`4`		`881`
`5`		`1181`
`6`		`1811`
`7`		`8111`
`8`		`18181`
`9`		`81181`
`10`		`88811`
`11`		`1111181`
`12`		`1181881`
`13`		`1881181`
`14`		`1881811`
`15`		`1881881`
`16`		`8118181`
`17`		`8181881`
`18`		`8188111`
`19`		`8188181`
`20`		`8818811`
`21`		`8881111`
`22`		`8881811`
`23`		`11818181`
`24`		`11881811`
`25`		`11888111`
`26`		`18111881`
`27`		`18118811`
`28`		`18181181`
`29`		`18811181`
`30`		`18888811`

[11,181,811,881,1181,1811,8111,18181,81181,88811, 1111181,1181881,1881181,1881811,1881881,8118181, 8181881,8188111,8188181,8818811,8881111,8881811, 11818181,11881811,11888111,18111881,18118811, 18181181,18811181,18888811]

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Last modified April 24 08:59 EDT 2024. Contains 371935 sequences. (Running on oeis4.)