| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 11 |
| 3 | 11 |
| 4 | 11 |
| 5 | 11 |
| 6 | 11 |
| 7 | 11 |
| 8 | 11 |
| 9 | 11 |
| 10 | 11 |
| 11 | 11 |
| 12 | 222 |
| 13 | 111 |
| 14 | 222 |
| 15 | 222 |
| 16 | 111 |
| 17 | 222 |
| 18 | 222 |
| 19 | 111 |
| 20 | 222 |
| 21 | 444 |
| 22 | 444 |
| 23 | 222 |
| 24 | 222 |
| 25 | 111 |
| 26 | 222 |
| 27 | 222 |
| 28 | 111 |
| 29 | 222 |
| 30 | 222 |
| 31 | 444 |
| 32 | 222 |
| 33 | 444 |
| 34 | 222 |
| 35 | 222 |
| 36 | 222 |
| 37 | 37 |
| 38 | 222 |
| 39 | 222 |
| 40 | 222 |
| 41 | 444 |
| 42 | 444 |
| 43 | 444 |
| 44 | 444 |
| 45 | 222 |
| 46 | 111 |
| 47 | 222 |
| 48 | 222 |
| 49 | 111 |
| 50 | 222 |
| 51 | 444 |
| 52 | 444 |
| 53 | 222 |
| 54 | 444 |
[0,1,11,11,11,11,11,11,11,11,11,11,222,111,222, 222,111,222,222,111,222,444,444,222,222,111,222, 222,111,222,222,444,222,444,222,222,222,37,222, 222,222,444,444,444,444,222,111,222,222,111,222, 444,444,222,444] |