| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 11 |
| 2 | 1 |
| 3 | 111 |
| 4 | 10001 |
| 5 | 110111 |
| 6 | 110001 |
| 7 | 10010111 |
| 8 | 111000001 |
| 9 | 11000111 |
| 10 | 1011010001 |
| 11 | 101001110111 |
| 12 | 1011110100001 |
| 13 | 10100011100111 |
| 14 | 101101101110001 |
| 15 | 1011100100010111 |
| 16 | 10100110101000001 |
| 17 | 101110011111000111 |
| 18 | 1010111000001010001 |
| 19 | 10111001000111110111 |
[1,11,1,111,10001,110111,110001,10010111, 111000001,11000111,1011010001,101001110111, 1011110100001,10100011100111,101101101110001, 1011100100010111,10100110101000001, 101110011111000111,1010111000001010001, 10111001000111110111] |