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| n | a(n) |
|---|---|
| 1 | 2211 |
| 2 | 2211 |
| 3 | 22211 |
| 4 | 22211 |
| 5 | 222211 |
| 6 | 222211 |
| 7 | 2222211 |
| 8 | 2222211 |
| 9 | 22222211 |
| 10 | 22222211 |
| 11 | 222222211 |
| 12 | 222222211 |
| 13 | 2222222211 |
| 14 | 2222222211 |
| 15 | 22222222211 |
| 16 | 22222222211 |
| 17 | 222222222211 |
| 18 | 222222222211 |
| 19 | 2222222222211 |
| 20 | 2222222222211 |
| 21 | 22222222222211 |
| 22 | 22222222222211 |
[2211,2211,22211,22211,222211,222211,2222211, 2222211,22222211,22222211,222222211,222222211, 2222222211,2222222211,22222222211,22222222211, 222222222211,222222222211,2222222222211, 2222222222211,22222222222211,22222222222211] |