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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 110 |
| 3 | 111 |
| 4 | 10100 |
| 5 | 1111 |
| 6 | 1101000 |
| 7 | 1011111 |
| 8 | 110000 |
| 9 | 1111111111 |
| 10 | 1110100000 |
| 11 | 110001111111 |
| 12 | 111101000000 |
| 13 | 11101011111111 |
| 14 | 110000000 |
| 15 | 1111111111111111 |
| 16 | 1110100000000 |
| 17 | 111110001111111111 |
| 18 | 11011101000000000 |
| 19 | 110101011111111111 |
| 20 | 111010000110000000000 |
[1,1,110,111,10100,1111,1101000,1011111,110000, 1111111111,1110100000,110001111111,111101000000, 11101011111111,110000000,1111111111111111, 1110100000000,111110001111111111, 11011101000000000,110101011111111111, 111010000110000000000] |