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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 10 |
| 3 | 10011 |
| 4 | 10440 |
| 5 | 41041 |
| 6 | 41001040 |
| 7 | 141044410 |
| 8 | 1010004040 |
| 9 | 4104044101 |
| 10 | 14041444410 |
| 11 | 114011410040100 |
| 12 | 440404440401100 |
| 13 | 1041401040044401 |
| 14 | 40114114410110140 |
| 15 | 14001400401400441011 |
| 16 | 1040410404040110411004140 |
| 17 | 1014411414040144040404100100 |
[1,10,10011,10440,41041,41001040,141044410, 1010004040,4104044101,14041444410,114011410040100, 440404440401100,1041401040044401, 40114114410110140,14001400401400441011, 1040410404040110411004140, 1014411414040144040404100100] |