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| n | a(n) |
|---|---|
| 1 | 201 |
| 2 | 2001 |
| 3 | 2011 |
| 4 | 2201 |
| 5 | 20001 |
| 6 | 20011 |
| 7 | 20111 |
| 8 | 22001 |
| 9 | 22011 |
| 10 | 22201 |
| 11 | 200001 |
| 12 | 200011 |
| 13 | 200111 |
| 14 | 201111 |
| 15 | 220001 |
| 16 | 220011 |
| 17 | 220111 |
| 18 | 222001 |
| 19 | 222011 |
| 20 | 222201 |
| 21 | 2000001 |
| 22 | 2000011 |
| 23 | 2000111 |
| 24 | 2001111 |
| 25 | 2011111 |
| 26 | 2200001 |
| 27 | 2200011 |
| 28 | 2200111 |
| 29 | 2201111 |
| 30 | 2220001 |
| 31 | 2220011 |
| 32 | 2220111 |
[201,2001,2011,2201,20001,20011,20111,22001,22011, 22201,200001,200011,200111,201111,220001,220011, 220111,222001,222011,222201,2000001,2000011, 2000111,2001111,2011111,2200001,2200011,2200111, 2201111,2220001,2220011,2220111] |