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| n | a(n) |
|---|---|
| 1 | 101 |
| 2 | 10111 |
| 3 | 101111 |
| 4 | 11110111 |
| 5 | 11111101 |
| 6 | 101111111 |
| 7 | 101111111111 |
| 8 | 111011111111 |
| 9 | 111111011111 |
| 10 | 111111110111 |
| 11 | 111111111101 |
| 12 | 11111111101111111 |
| 13 | 11111111111111101 |
| 14 | 101111111111111111 |
| 15 | 111110111111111111 |
| 16 | 111111101111111111 |
| 17 | 111111111111011111 |
| 18 | 111111111111111011 |
[101,10111,101111,11110111,11111101,101111111, 101111111111,111011111111,111111011111, 111111110111,111111111101,11111111101111111, 11111111111111101,101111111111111111, 111110111111111111,111111101111111111, 111111111111011111,111111111111111011] |