The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 191 |
| 2 | 797 |
| 3 | 19991 |
| 4 | 79997 |
| 5 | 199999991 |
| 6 | 79999999999999999999999999997 |
| 7 | 19999999999999999999999999999999999999991 |
| 8 | 199999999999999999999999999999999999999999999999999999999999999999999999999999999999991 |
[191,797,19991,79997,199999991, 79999999999999999999999999997, 19999999999999999999999999999999999999991, 19999999999999999999999999999999999999999999999999\ 9999999999999999999999999999999999991] |