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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 110 |
| 3 | 11 |
| 4 | 11100 |
| 5 | 10111 |
| 6 | 1011000 |
| 7 | 1001111 |
| 8 | 101110000 |
| 9 | 111011111 |
| 10 | 10001100000 |
| 11 | 11100111111 |
| 12 | 1101111000000 |
| 13 | 101101111111 |
| 14 | 110100110000000 |
| 15 | 110110011111111 |
| 16 | 10011111100000000 |
| 17 | 11000110111111111 |
| 18 | 1111110011000000000 |
| 19 | 10111001111111111 |
| 20 | 111010111110000000000 |
[1,1,110,11,11100,10111,1011000,1001111,101110000, 111011111,10001100000,11100111111,1101111000000, 101101111111,110100110000000,110110011111111, 10011111100000000,11000110111111111, 1111110011000000000,10111001111111111, 111010111110000000000] |