A083835 - OEIS

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A083835 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`9`
`3`		`99`
`4`		`121`
`5`		`131`
`6`		`999`
`7`		`9999`
`8`		`12021`
`9`		`12121`
`10`		`13031`
`11`		`13131`
`12`		`99999`
`13`		`999999`
`14`		`1202021`
`15`		`1203021`
`16`		`1212121`
`17`		`1213121`
`18`		`1302031`
`19`		`1303031`
`20`		`1312131`
`21`		`1313131`
`22`		`9999999`
`23`		`99999999`
`24`		`120202021`
`25`		`120212021`
`26`		`120303021`
`27`		`120313021`
`28`		`121202121`
`29`		`121212121`

[1,9,99,121,131,999,9999,12021,12121,13031,13131, 99999,999999,1202021,1203021,1212121,1213121, 1302031,1303031,1312131,1313131,9999999,99999999, 120202021,120212021,120303021,120313021,121202121, 121212121]

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Last modified April 18 04:31 EDT 2024. Contains 371767 sequences. (Running on oeis4.)