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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 13 |
| 3 | 136 |
| 4 | 1360 |
| 5 | 13605 |
| 6 | 136051 |
| 7 | 1360518 |
| 8 | 13605186 |
| 9 | 136051865 |
| 10 | 1360518655 |
| 11 | 13605186556 |
| 12 | 136051865568 |
| 13 | 1360518655681 |
| 14 | 13605186556815 |
| 15 | 136051865568150 |
| 16 | 1360518655681506 |
| 17 | 13605186556815063 |
| 18 | 136051865568150631 |
| 19 | 1360518655681506310 |
| 20 | 13605186556815063100 |
[1,13,136,1360,13605,136051,1360518,13605186, 136051865,1360518655,13605186556,136051865568, 1360518655681,13605186556815,136051865568150, 1360518655681506,13605186556815063, 136051865568150631,1360518655681506310, 13605186556815063100] |