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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 101 |
| 3 | 1011 |
| 4 | 11011 |
| 5 | 110111 |
| 6 | 10111 |
| 7 | 101111 |
| 8 | 10101111 |
| 9 | 101011111 |
| 10 | 10101011111 |
| 11 | 101010111111 |
| 12 | 1011010111111 |
| 13 | 10110101111111 |
| 14 | 110010101111111 |
| 15 | 1100101011111111 |
| 16 | 10101011111111 |
| 17 | 101010111111111 |
| 18 | 110101010111111111 |
| 19 | 1101010101111111111 |
| 20 | 100100110101111111111 |
[1,1,101,1011,11011,110111,10111,101111,10101111, 101011111,10101011111,101010111111,1011010111111, 10110101111111,110010101111111,1100101011111111, 10101011111111,101010111111111,110101010111111111, 1101010101111111111,100100110101111111111] |