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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 10 |
| 4 | 111 |
| 5 | 1000 |
| 6 | 1011 |
| 7 | 11110101001101 |
| 8 | 11110101001110 |
| 9 | 11110101001111 |
| 10 | 11110101010011 |
| 11 | 11110101010101 |
| 12 | 1100111000010111011100 |
| 13 | 1100111000010111011101 |
[0,1,10,111,1000,1011,11110101001101, 11110101001110,11110101001111,11110101010011, 11110101010101,1100111000010111011100, 1100111000010111011101] |