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| n | a(n) |
|---|---|
| 1 | 13 |
| 2 | 103 |
| 3 | 1003 |
| 4 | 10003 |
| 5 | 100003 |
| 6 | 1000003 |
| 7 | 10000003 |
| 8 | 100000003 |
| 9 | 1000000003 |
| 10 | 10000000003 |
| 11 | 100000000003 |
| 12 | 1000000000003 |
| 13 | 10000000000003 |
| 14 | 100000000000003 |
| 15 | 1000000000000003 |
| 16 | 10000000000000003 |
| 17 | 100000000000000003 |
| 18 | 1000000000000000003 |
| 19 | 10000000000000000003 |
[13,103,1003,10003,100003,1000003,10000003, 100000003,1000000003,10000000003,100000000003, 1000000000003,10000000000003,100000000000003, 1000000000000003,10000000000000003, 100000000000000003,1000000000000000003, 10000000000000000003] |