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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 101 |
| 3 | 1011 |
| 4 | 1011 |
| 5 | 100111 |
| 6 | 1010111 |
| 7 | 1001111 |
| 8 | 101101111 |
| 9 | 1000011111 |
| 10 | 1001011111 |
| 11 | 100000111111 |
| 12 | 111110111111 |
| 13 | 10111001111111 |
| 14 | 101110101111111 |
| 15 | 100010011111111 |
| 16 | 10000011011111111 |
| 17 | 101111000111111111 |
| 18 | 11100010111111111 |
| 19 | 11000110001111111111 |
| 20 | 101101111111111 |
[1,1,101,1011,1011,100111,1010111,1001111, 101101111,1000011111,1001011111,100000111111, 111110111111,10111001111111,101110101111111, 100010011111111,10000011011111111, 101111000111111111,11100010111111111, 11000110001111111111,101101111111111] |