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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 10 |
| 2 | 11 |
| 3 | 1100 |
| 4 | 111 |
| 5 | 111000 |
| 6 | 1111 |
| 7 | 11110010 |
| 8 | 11101 |
| 9 | 1111100010 |
| 10 | 111101 |
| 11 | 111111001110 |
| 12 | 1110001 |
| 13 | 11111110001110 |
| 14 | 11111011 |
| 15 | 1111111100110100 |
| 16 | 111001011 |
| 17 | 111111111000110110 |
| 18 | 1111111001 |
| 19 | 11111111110011000110 |
| 20 | 11100111001 |
| 21 | 1111111111100011101110 |
| 22 | 111111010001 |
[1,10,11,1100,111,111000,1111,11110010,11101, 1111100010,111101,111111001110,1110001, 11111110001110,11111011,1111111100110100, 111001011,111111111000110110,1111111001, 11111111110011000110,11100111001, 1111111111100011101110,111111010001] |