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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 11 |
| 4 | 12 |
| 5 | 21 |
| 6 | 111 |
| 7 | 22 |
| 8 | 112 |
| 9 | 121 |
| 10 | 211 |
| 11 | 1111 |
| 12 | 122 |
| 13 | 212 |
| 14 | 221 |
| 15 | 1112 |
| 16 | 1121 |
| 17 | 1211 |
| 18 | 2111 |
| 19 | 11111 |
| 20 | 222 |
| 21 | 1122 |
| 22 | 1212 |
| 23 | 1221 |
| 24 | 2112 |
| 25 | 2121 |
| 26 | 2211 |
| 27 | 11112 |
| 28 | 11121 |
| 29 | 11211 |
| 30 | 12111 |
| 31 | 21111 |
| 32 | 111111 |
| 33 | 1222 |
| 34 | 2122 |
| 35 | 2212 |
| 36 | 2221 |
| 37 | 11122 |
| 38 | 11212 |
| 39 | 11221 |
| 40 | 12112 |
| 41 | 12121 |
| 42 | 12211 |
| 43 | 21112 |
| 44 | 21121 |
| 45 | 21211 |
| 46 | 22111 |
| 47 | 111112 |
| 48 | 111121 |
| 49 | 111211 |
| 50 | 112111 |
| 51 | 121111 |
| 52 | 211111 |
| 53 | 1111111 |
[1,2,11,12,21,111,22,112,121,211,1111,122,212,221, 1112,1121,1211,2111,11111,222,1122,1212,1221,2112, 2121,2211,11112,11121,11211,12111,21111,111111, 1222,2122,2212,2221,11122,11212,11221,12112,12121, 12211,21112,21121,21211,22111,111112,111121, 111211,112111,121111,211111,1111111] |