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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 498 |
| 3 | 5882 |
| 4 | 2205880 |
| 5 | 55566444 |
| 6 | 77170177870877 |
| 7 | 550000588000083300003 |
| 8 | 99999984 |
| 9 | 888848044666636033 |
| 10 | 9999999968 |
| 11 | 444444404046666666060699999990909 |
| 12 | 77777777077077777777077 |
| 13 | 111111111001133333333300339999999990099 |
| 14 | 5555555550055033333333300330 |
[0,498,5882,2205880,55566444,77170177870877, 550000588000083300003,99999984,888848044666636033, 9999999968,444444404046666666060699999990909, 77777777077077777777077, 111111111001133333333300339999999990099, 5555555550055033333333300330] |