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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 11 |
| 3 | 59 |
| 4 | 359 |
| 5 | 2879 |
| 6 | 28799 |
| 7 | 345599 |
| 8 | 4838399 |
| 9 | 82252799 |
| 10 | 1480550399 |
| 11 | 29611007999 |
| 12 | 710664191999 |
| 13 | 18477268991999 |
| 14 | 554318069759999 |
| 15 | 17738178232319999 |
| 16 | 674050772828159999 |
| 17 | 28310132458782719999 |
| 18 | 1245645828186439679999 |
| 19 | 59790999752949104639999 |
[2,11,59,359,2879,28799,345599,4838399,82252799, 1480550399,29611007999,710664191999, 18477268991999,554318069759999,17738178232319999, 674050772828159999,28310132458782719999, 1245645828186439679999,59790999752949104639999] |