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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 11 |
| 3 | 1121 |
| 4 | 11211231 |
| 5 | 1121123141221351 |
| 6 | 11211231412213511461324271231581 |
| 7 | 11211231412213511461324271231581912416 |
[1,11,1121,11211231,1121123141221351, 11211231412213511461324271231581, 11211231412213511461324271231581912416] |