A155890 as tables, graphs or sounds

A155890 formatted as a simple table:

`n`		`a(n)`
`1`		`2`
`2`		`12`
`3`		`21`
`4`		`102`
`5`		`120`
`6`		`201`
`7`		`210`
`8`		`1002`
`9`		`1020`
`10`		`1200`
`11`		`2001`
`12`		`2010`
`13`		`2100`
`14`		`10002`
`15`		`10020`
`16`		`10200`
`17`		`12000`
`18`		`20001`
`19`		`20010`
`20`		`20100`
`21`		`21000`
`22`		`100002`
`23`		`100020`
`24`		`100200`
`25`		`102000`
`26`		`120000`
`27`		`200001`
`28`		`200010`
`29`		`200100`
`30`		`201000`
`31`		`210000`
`32`		`1000002`
`33`		`1000020`
`34`		`1000200`
`35`		`1002000`

[2,12,21,102,120,201,210,1002,1020,1200,2001,2010, 2100,10002,10020,10200,12000,20001,20010,20100, 21000,100002,100020,100200,102000,120000,200001, 200010,200100,201000,210000,1000002,1000020, 1000200,1002000]

Last modified December 21 10:15 EST 2009. Contains 171081 sequences.

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