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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 10 |
| 2 | 11 |
| 3 | 1100 |
| 4 | 111 |
| 5 | 111000 |
| 6 | 1111 |
| 7 | 11110000 |
| 8 | 11111 |
| 9 | 1111100000 |
| 10 | 111111 |
| 11 | 111111001110 |
| 12 | 1110111 |
| 13 | 11111110011000 |
| 14 | 11111111 |
| 15 | 1111111100000100 |
| 16 | 111111011 |
| 17 | 111111111001000100 |
| 18 | 1111111011 |
| 19 | 11111111110011101110 |
| 20 | 11110011111 |
| 21 | 1111111111100011100100 |
| 22 | 111110011011 |
[1,10,11,1100,111,111000,1111,11110000,11111, 1111100000,111111,111111001110,1110111, 11111110011000,11111111,1111111100000100, 111111011,111111111001000100,1111111011, 11111111110011101110,11110011111, 1111111111100011100100,111110011011] |