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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 12 |
| 3 | 112 |
| 4 | 1120 |
| 5 | 10112 |
| 6 | 101120 |
| 7 | 1002112 |
| 8 | 10010112 |
| 9 | 100101120 |
| 10 | 1001011200 |
| 11 | 10002010112 |
| 12 | 100012122112 |
| 13 | 1000121221120 |
| 14 | 10001212211200 |
| 15 | 100002002010112 |
| 16 | 1000000210010112 |
| 17 | 10000002100101120 |
| 18 | 100000021001011200 |
| 19 | 1000000210010112000 |
| 20 | 10000000201221210112 |
[2,12,112,1120,10112,101120,1002112,10010112, 100101120,1001011200,10002010112,100012122112, 1000121221120,10001212211200,100002002010112, 1000000210010112,10000002100101120, 100000021001011200,1000000210010112000, 10000000201221210112] |