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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 11 |
| 2 | 110 |
| 3 | 111 |
| 4 | 11000 |
| 5 | 1111 |
| 6 | 1111000 |
| 7 | 11111111 |
| 8 | 1100000 |
| 9 | 1100111111 |
| 10 | 1111000000 |
| 11 | 111111111111 |
| 12 | 1111000000000 |
| 13 | 11001111111111 |
| 14 | 11100110000000 |
| 15 | 1101111111111111 |
| 16 | 11101111000000000 |
| 17 | 11111001111111111 |
| 18 | 1110011110000000000 |
| 19 | 11001111111111111 |
[1,11,110,111,11000,1111,1111000,11111111,1100000, 1100111111,1111000000,111111111111,1111000000000, 11001111111111,11100110000000,1101111111111111, 11101111000000000,11111001111111111, 1110011110000000000,11001111111111111] |