A007931 as tables, graphs or sounds

A007931 formatted as a simple table:

`n`		`a(n)`
`1`		`1`
`2`		`2`
`3`		`11`
`4`		`12`
`5`		`21`
`6`		`22`
`7`		`111`
`8`		`112`
`9`		`121`
`10`		`122`
`11`		`211`
`12`		`212`
`13`		`221`
`14`		`222`
`15`		`1111`
`16`		`1112`
`17`		`1121`
`18`		`1122`
`19`		`1211`
`20`		`1212`
`21`		`1221`
`22`		`1222`
`23`		`2111`
`24`		`2112`
`25`		`2121`
`26`		`2122`
`27`		`2211`
`28`		`2212`
`29`		`2221`
`30`		`2222`
`31`		`11111`
`32`		`11112`
`33`		`11121`
`34`		`11122`
`35`		`11211`
`36`		`11212`
`37`		`11221`
`38`		`11222`
`39`		`12111`
`40`		`12112`
`41`		`12121`
`42`		`12122`

[1,2,11,12,21,22,111,112,121,122,211,212,221,222, 1111,1112,1121,1122,1211,1212,1221,1222,2111,2112, 2121,2122,2211,2212,2221,2222,11111,11112,11121, 11122,11211,11212,11221,11222,12111,12112,12121, 12122]

Last modified December 8 08:31 EST 2009. Contains 170430 sequences.

AT&T Labs Research