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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 100 |
| 3 | 0 |
| 4 | 11100 |
| 5 | 111000 |
| 6 | 1110100 |
| 7 | 11010000 |
| 8 | 101101100 |
| 9 | 110111000 |
| 10 | 11010110100 |
| 11 | 101110010000 |
| 12 | 111100101100 |
| 13 | 11110001111000 |
| 14 | 111101001110100 |
| 15 | 1110110001010000 |
| 16 | 11111101011101100 |
| 17 | 111111111110111000 |
| 18 | 1111111111110110100 |
| 19 | 11111111111010010000 |
[1,0,100,0,11100,111000,1110100,11010000, 101101100,110111000,11010110100,101110010000, 111100101100,11110001111000,111101001110100, 1110110001010000,11111101011101100, 111111111110111000,1111111111110110100, 11111111111010010000] |