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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 10 |
| 2 | 111 |
| 3 | 10 |
| 4 | 10111 |
| 5 | 111010 |
| 6 | 11111 |
| 7 | 10100010 |
| 8 | 111010111 |
| 9 | 11111010 |
| 10 | 10100011111 |
| 11 | 111010100010 |
| 12 | 11111010111 |
| 13 | 10100011111010 |
| 14 | 111010100011111 |
| 15 | 11111010100010 |
| 16 | 10100011111010111 |
| 17 | 111010100011111010 |
| 18 | 11111010100011111 |
| 19 | 10100011111010100010 |
[1,10,111,10,10111,111010,11111,10100010, 111010111,11111010,10100011111,111010100010, 11111010111,10100011111010,111010100011111, 11111010100010,10100011111010111, 111010100011111010,11111010100011111, 10100011111010100010] |