The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 13 |
| 3 | 17 |
| 4 | 79 |
| 5 | 6899 |
| 6 | 19999999 |
| 7 | 399899999999999 |
| 8 | 59998999999999999999999999999 |
| 9 | 999999999998999999999999999999999999999999999999999999999 |
| 10 | 899999999999999999999999999999998999999999999999999999999999999999999999999999999999999999999999999999999999999999 |
[2,13,17,79,6899,19999999,399899999999999, 59998999999999999999999999999, 99999999999899999999999999999999999999999999999999\ 9999999, 89999999999999999999999999999999899999999999999999\ 99999999999999999999999999999999999999999999999999\ 99999999999999] |