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| n | a(n) |
|---|---|
| 1 | 8 |
| 2 | 87 |
| 3 | 875 |
| 4 | 8757 |
| 5 | 87571 |
| 6 | 875719 |
| 7 | 8757193 |
| 8 | 87571931 |
| 9 | 875719319 |
| 10 | 8757193191 |
[8,87,875,8757,87571,875719,8757193,87571931, 875719319,8757193191] |