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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 12 |
| 3 | 112 |
| 4 | 2112 |
| 5 | 22112 |
| 6 | 122112 |
| 7 | 2122112 |
| 8 | 12122112 |
| 9 | 212122112 |
| 10 | 1212122112 |
| 11 | 11212122112 |
| 12 | 111212122112 |
| 13 | 1111212122112 |
| 14 | 11111212122112 |
| 15 | 211111212122112 |
| 16 | 1211111212122112 |
| 17 | 11211111212122112 |
| 18 | 111211111212122112 |
| 19 | 2111211111212122112 |
| 20 | 12111211111212122112 |
[2,12,112,2112,22112,122112,2122112,12122112, 212122112,1212122112,11212122112,111212122112, 1111212122112,11111212122112,211111212122112, 1211111212122112,11211111212122112, 111211111212122112,2111211111212122112, 12111211111212122112] |