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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 11 |
| 2 | 110 |
| 3 | 1100 |
| 4 | 11000 |
| 5 | 110000 |
| 6 | 110011 |
| 7 | 1100000 |
| 8 | 1100110 |
| 9 | 11000000 |
| 10 | 11000011 |
| 11 | 11001100 |
| 12 | 110000000 |
| 13 | 110000011 |
| 14 | 110000110 |
| 15 | 110011000 |
| 16 | 1100000000 |
| 17 | 1100000011 |
| 18 | 1100000110 |
| 19 | 1100001100 |
| 20 | 1100110000 |
| 21 | 1100110011 |
| 22 | 11000000000 |
[0,11,110,1100,11000,110000,110011,1100000, 1100110,11000000,11000011,11001100,110000000, 110000011,110000110,110011000,1100000000, 1100000011,1100000110,1100001100,1100110000, 1100110011,11000000000] |