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| n | a(n) |
|---|---|
| 1 | 4 |
| 2 | 35344 |
| 3 | 5345344 |
| 4 | 35545444 |
| 5 | 53343445444 |
| 6 | 544554334433344 |
| 7 | 3544343354534544 |
| 8 | 4443443455344545344 |
| 9 | 334444343454454533444 |
| 10 | 45443343345333434545444 |
| 11 | 555433455345343534553344 |
| 12 | 455533543534444433554534333443535353444 |
[4,35344,5345344,35545444,53343445444, 544554334433344,3544343354534544, 4443443455344545344,334444343454454533444, 45443343345333434545444,555433455345343534553344, 455533543534444433554534333443535353444] |