A020472 as tables, graphs or sounds

A020472 formatted as a simple table:

`n`		`a(n)`
`1`		`89`
`2`		`8999`
`3`		`89899`
`4`		`89989`
`5`		`98899`
`6`		`98999`
`7`		`99989`
`8`		`888989`
`9`		`898889`
`10`		`989999`
`11`		`998989`
`12`		`8888989`
`13`		`8889889`
`14`		`8988989`
`15`		`8989999`
`16`		`8998889`
`17`		`8999899`
`18`		`9888889`
`19`		`9889889`
`20`		`9899999`
`21`		`9989899`
`22`		`9999889`
`23`		`88888999`
`24`		`88898989`
`25`		`88989899`
`26`		`89888989`
`27`		`89889889`
`28`		`89898889`

[89,8999,89899,89989,98899,98999,99989,888989, 898889,989999,998989,8888989,8889889,8988989, 8989999,8998889,8999899,9888889,9889889,9899999, 9989899,9999889,88888999,88898989,88989899, 89888989,89889889,89898889]

Last modified November 30 13:13 EST 2009. Contains 167758 sequences.

AT&T Labs Research