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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 10 |
| 3 | 11 |
| 4 | 11100 |
| 5 | 1111 |
| 6 | 1100000 |
| 7 | 1101111 |
| 8 | 10000 |
| 9 | 1101011111 |
| 10 | 100000 |
| 11 | 110010111111 |
| 12 | 11001000000 |
| 13 | 11111101111111 |
| 14 | 1010000000 |
| 15 | 1111100011111111 |
| 16 | 111100000000 |
| 17 | 111011001111111111 |
| 18 | 10111100000000000 |
| 19 | 11000000101111111111 |
| 20 | 11011010010000000000 |
[1,1,10,11,11100,1111,1100000,1101111,10000, 1101011111,100000,110010111111,11001000000, 11111101111111,1010000000,1111100011111111, 111100000000,111011001111111111,10111100000000000, 11000000101111111111,11011010010000000000] |