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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 111 |
| 3 | 100 |
| 4 | 10111 |
| 5 | 100 |
| 6 | 1110111 |
| 7 | 1010100 |
| 8 | 101000001 |
| 9 | 111110 |
| 10 | 11111100010 |
| 11 | 10000111100 |
| 12 | 1011111110101 |
| 13 | 10010010100 |
| 14 | 111011101000011 |
| 15 | 101010110111110 |
| 16 | 10100000110100010 |
| 17 | 11111110001100 |
| 18 | 1111110001010111101 |
| 19 | 1000011110010100100 |
| 20 | 101111111010100100011 |
[1,0,111,100,10111,100,1110111,1010100,101000001, 111110,11111100010,10000111100,1011111110101, 10010010100,111011101000011,101010110111110, 10100000110100010,11111110001100, 1111110001010111101,1000011110010100100, 101111111010100100011] |