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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 9 |
| 3 | 999999999 |
| 4 | 4999999995 |
| 5 | 4000099995 |
| 6 | 2888988885 |
| 7 | 800099995 |
| 8 | 2900099996 |
| 9 | 3000999996 |
| 10 | 3334333329 |
| 11 | 1000006195 |
| 12 | 889655560 |
| 13 | 368199996 |
| 14 | 2923444555 |
| 15 | 111394795 |
| 16 | 1452329335 |
| 17 | 666792195 |
| 18 | 1449655625 |
| 19 | 334781195 |
| 20 | 948992565 |
| 21 | 1145513395 |
| 22 | 889070335 |
| 23 | 372323885 |
| 24 | 168990195 |
[1,9,999999999,4999999995,4000099995,2888988885, 800099995,2900099996,3000999996,3334333329, 1000006195,889655560,368199996,2923444555, 111394795,1452329335,666792195,1449655625, 334781195,948992565,1145513395,889070335, 372323885,168990195] |