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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 11 |
| 2 | 100 |
| 3 | 1110 |
| 4 | 10000 |
| 5 | 111100 |
| 6 | 1001010 |
| 7 | 11111110 |
| 8 | 100000000 |
| 9 | 1111000000 |
| 10 | 10010100000 |
| 11 | 111111110000 |
| 12 | 1000000001000 |
| 13 | 11110000011100 |
| 14 | 100101000100010 |
| 15 | 1111111101110110 |
| 16 | 10000000000000000 |
| 17 | 111100000000000000 |
| 18 | 1001010001010000000 |
| 19 | 11111111011011000000 |
[1,11,100,1110,10000,111100,1001010,11111110, 100000000,1111000000,10010100000,111111110000, 1000000001000,11110000011100,100101000100010, 1111111101110110,10000000000000000, 111100000000000000,1001010001010000000, 11111111011011000000] |