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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 111 |
| 3 | 100 |
| 4 | 11111 |
| 5 | 10000 |
| 6 | 1111111 |
| 7 | 1000100 |
| 8 | 111111111 |
| 9 | 100000100 |
| 10 | 11111111111 |
| 11 | 10001010100 |
| 12 | 1111111111111 |
| 13 | 1000001010100 |
| 14 | 111111111111111 |
| 15 | 100010101010100 |
| 16 | 11111111111111111 |
| 17 | 10000010101010100 |
| 18 | 1111111111111111111 |
| 19 | 1000101010101010100 |
[1,1,111,100,11111,10000,1111111,1000100, 111111111,100000100,11111111111,10001010100, 1111111111111,1000001010100,111111111111111, 100010101010100,11111111111111111, 10000010101010100,1111111111111111111, 1000101010101010100] |