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| n | a(n) |
|---|---|
| 1 | 11 |
| 2 | 21 |
| 3 | 31 |
| 4 | 1115 |
| 5 | 15 |
| 6 | 1511 |
| 7 | 1521 |
| 8 | 1531 |
| 9 | 11110 |
| 10 | 110 |
| 11 | 11011 |
| 12 | 11021 |
| 13 | 11031 |
| 14 | 1101115 |
| 15 | 11015 |
| 16 | 1101511 |
| 17 | 1101521 |
| 18 | 1101531 |
| 19 | 11011110 |
| 20 | 210 |
| 21 | 21011 |
| 22 | 21021 |
| 23 | 21031 |
| 24 | 2101115 |
| 25 | 21015 |
| 26 | 2101511 |
| 27 | 2101521 |
| 28 | 2101531 |
| 29 | 21011110 |
| 30 | 310 |
| 31 | 31011 |
| 32 | 31021 |
| 33 | 31031 |
| 34 | 3101115 |
| 35 | 31015 |
| 36 | 3101511 |
[11,21,31,1115,15,1511,1521,1531,11110,110,11011, 11021,11031,1101115,11015,1101511,1101521,1101531, 11011110,210,21011,21021,21031,2101115,21015, 2101511,2101521,2101531,21011110,310,31011,31021, 31031,3101115,31015,3101511] |