| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 200 |
| 4 | 201 |
| 5 | 202 |
| 6 | 2000 |
| 7 | 2001 |
| 8 | 2002 |
| 9 | 2200 |
| 10 | 2201 |
| 11 | 2202 |
| 12 | 2000000000000 |
| 13 | 2000000000001 |
| 14 | 2000000000002 |
| 15 | 2000000000200 |
| 16 | 2000000000201 |
| 17 | 2000000000202 |
| 18 | 2000000002000 |
| 19 | 2000000002001 |
| 20 | 2000000002002 |
| 21 | 2000000002200 |
| 22 | 2000000002201 |
| 23 | 2000000002202 |
[1,2,200,201,202,2000,2001,2002,2200,2201,2202, 2000000000000,2000000000001,2000000000002, 2000000000200,2000000000201,2000000000202, 2000000002000,2000000002001,2000000002002, 2000000002200,2000000002201,2000000002202] |