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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 12 |
| 3 | 122 |
| 4 | 1221 |
| 5 | 12212 |
| 6 | 122122 |
| 7 | 1221221 |
| 8 | 12212212 |
| 9 | 122122122 |
| 10 | 1221221221 |
| 11 | 12212212212 |
| 12 | 122122122122 |
| 13 | 1221221221221 |
| 14 | 12212212212212 |
| 15 | 122122122122122 |
| 16 | 1221221221221221 |
[1,12,122,1221,12212,122122,1221221,12212212, 122122122,1221221221,12212212212,122122122122, 1221221221221,12212212212212,122122122122122, 1221221221221221] |