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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 11 |
| 3 | 111 |
| 4 | 121 |
| 5 | 1111 |
| 6 | 1121 |
| 7 | 1211 |
| 8 | 1221 |
| 9 | 11111 |
| 10 | 11121 |
| 11 | 11211 |
| 12 | 11221 |
| 13 | 12111 |
| 14 | 12121 |
| 15 | 12211 |
| 16 | 12221 |
| 17 | 12321 |
| 18 | 111111 |
| 19 | 111121 |
| 20 | 111211 |
| 21 | 111221 |
| 22 | 112111 |
| 23 | 112121 |
| 24 | 112211 |
| 25 | 112221 |
| 26 | 112321 |
| 27 | 121111 |
| 28 | 121121 |
| 29 | 121211 |
| 30 | 121221 |
| 31 | 122111 |
| 32 | 122121 |
| 33 | 122211 |
| 34 | 122221 |
| 35 | 122321 |
| 36 | 123211 |
| 37 | 123221 |
| 38 | 123321 |
[1,11,111,121,1111,1121,1211,1221,11111,11121, 11211,11221,12111,12121,12211,12221,12321,111111, 111121,111211,111221,112111,112121,112211,112221, 112321,121111,121121,121211,121221,122111,122121, 122211,122221,122321,123211,123221,123321] |