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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 9 |
| 2 | 9801 |
| 3 | 997002999 |
| 4 | 9996000599960001 |
| 5 | 9999500009999900000499999 |
| 6 | 999994000014999980000014999994000001 |
| 7 | 9999993000002099999650000034999997900000069999999 |
| 8 | 9999999200000027999999440000006999999944000000279999999200000001 |
[1,9,9801,997002999,9996000599960001, 9999500009999900000499999, 999994000014999980000014999994000001, 9999993000002099999650000034999997900000069999999, 99999992000000279999994400000069999999440000002799\ 99999200000001] |