A020457 - OEIS

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A020457 as a simple table

`n`		`a(n)`
`1`		`11`
`2`		`19`
`3`		`191`
`4`		`199`
`5`		`911`
`6`		`919`
`7`		`991`
`8`		`1999`
`9`		`9199`
`10`		`11119`
`11`		`19919`
`12`		`19991`
`13`		`91199`
`14`		`99119`
`15`		`99191`
`16`		`99991`
`17`		`111119`
`18`		`111191`
`19`		`111919`
`20`		`119191`
`21`		`191119`
`22`		`191911`
`23`		`191999`
`24`		`199999`
`25`		`911111`
`26`		`919111`
`27`		`991999`
`28`		`999199`
`29`		`1111991`
`30`		`1191119`
`31`		`1191191`
`32`		`1191199`
`33`		`1191991`
`34`		`1199999`

[11,19,191,199,911,919,991,1999,9199,11119,19919, 19991,91199,99119,99191,99991,111119,111191, 111919,119191,191119,191911,191999,199999,911111, 919111,991999,999199,1111991,1191119,1191191, 1191199,1191991,1199999]

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)