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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 14 |
| 3 | 146 |
| 4 | 1468 |
| 5 | 14689 |
| 6 | 1468910 |
| 7 | 146891012 |
| 8 | 14689101214 |
| 9 | 1468910121415 |
| 10 | 146891012141516 |
| 11 | 14689101214151618 |
| 12 | 1468910121415161820 |
| 13 | 146891012141516182021 |
| 14 | 14689101214151618202122 |
| 15 | 1468910121415161820212224 |
| 16 | 146891012141516182021222425 |
[1,14,146,1468,14689,1468910,146891012, 14689101214,1468910121415,146891012141516, 14689101214151618,1468910121415161820, 146891012141516182021,14689101214151618202122, 1468910121415161820212224, 146891012141516182021222425] |