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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 100 |
| 3 | 3000 |
| 4 | 10000 |
| 5 | 100000 |
| 6 | 3000000 |
| 7 | 70000000 |
| 8 | 100000000 |
| 9 | 9000000000 |
| 10 | 10000000000 |
| 11 | 1000000000010 |
| 12 | 3000000000000 |
| 13 | 100000000000004 |
| 14 | 700000000000000 |
| 15 | 3000000000000000 |
| 16 | 10000000000000000 |
| 17 | 1000000000000000002 |
| 18 | 9000000000000000000 |
| 19 | 100000000000000000090 |
[0,100,3000,10000,100000,3000000,70000000, 100000000,9000000000,10000000000,1000000000010, 3000000000000,100000000000004,700000000000000, 3000000000000000,10000000000000000, 1000000000000000002,9000000000000000000, 100000000000000000090] |