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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 11 |
| 3 | 1000 |
| 4 | 11 |
| 5 | 111100 |
| 6 | 1001 |
| 7 | 11101110 |
| 8 | 10000 |
| 9 | 1111001111 |
| 10 | 110100 |
| 11 | 111110000111 |
| 12 | 111000 |
| 13 | 11111111000111 |
| 14 | 10011000 |
| 15 | 1111111010100011 |
| 16 | 100111100 |
| 17 | 111111110110011001 |
| 18 | 1000000010 |
| 19 | 11111111100111111100 |
| 20 | 11001000001 |
| 21 | 1111111111000110011110 |
| 22 | 10001001000 |
[1,0,11,1000,11,111100,1001,11101110,10000, 1111001111,110100,111110000111,111000, 11111111000111,10011000,1111111010100011, 100111100,111111110110011001,1000000010, 11111111100111111100,11001000001, 1111111111000110011110,10001001000] |