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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 10 |
| 2 | 110 |
| 3 | 1101 |
| 4 | 11110 |
| 5 | 111000 |
| 6 | 1111111 |
| 7 | 11110011 |
| 8 | 111111100 |
| 9 | 1111100111 |
| 10 | 11111111001 |
| 11 | 111111000110 |
| 12 | 1111111111010 |
| 13 | 11111110000101 |
| 14 | 111111111111110 |
| 15 | 1111111100000000 |
| 16 | 11111111111111111 |
| 17 | 111111111000011111 |
| 18 | 1111111111111110000 |
| 19 | 11111111110000101111 |
[1,10,110,1101,11110,111000,1111111,11110011, 111111100,1111100111,11111111001,111111000110, 1111111111010,11111110000101,111111111111110, 1111111100000000,11111111111111111, 111111111000011111,1111111111111110000, 11111111110000101111] |