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| n | a(n) |
|---|---|
| 0 | 1000000000 |
| 1 | 100000000 |
| 2 | 10000000 |
| 3 | 1000000 |
| 4 | 100000 |
| 5 | 10000 |
| 6 | 1000 |
| 7 | 100 |
| 8 | 10 |
| 9 | 1 |
| 10 | 2100000000 |
| 11 | 1200000000 |
| 12 | 120000000 |
| 13 | 102000000 |
| 14 | 100200000 |
| 15 | 100020000 |
| 16 | 100002000 |
| 17 | 100000200 |
| 18 | 100000020 |
| 19 | 100000002 |
| 20 | 2010000000 |
| 21 | 210000000 |
| 22 | 120000000 |
| 23 | 12000000 |
| 24 | 10200000 |
| 25 | 10020000 |
| 26 | 10002000 |
| 27 | 10000200 |
| 28 | 10000020 |
| 29 | 10000002 |
[1000000000,100000000,10000000,1000000,100000, 10000,1000,100,10,1,2100000000,1200000000, 120000000,102000000,100200000,100020000,100002000, 100000200,100000020,100000002,2010000000, 210000000,120000000,12000000,10200000,10020000, 10002000,10000200,10000020,10000002] |