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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 10 |
| 2 | 100 |
| 3 | 1001 |
| 4 | 10010 |
| 5 | 100101 |
| 6 | 1001010 |
| 7 | 10010101 |
| 8 | 100101010 |
| 9 | 1001010101 |
| 10 | 10010101010 |
| 11 | 100101010101 |
| 12 | 1001010101010 |
| 13 | 10010101010101 |
| 14 | 100101010101010 |
| 15 | 1001010101010101 |
| 16 | 10010101010101010 |
| 17 | 100101010101010101 |
| 18 | 1001010101010101010 |
| 19 | 10010101010101010101 |
[1,10,100,1001,10010,100101,1001010,10010101, 100101010,1001010101,10010101010,100101010101, 1001010101010,10010101010101,100101010101010, 1001010101010101,10010101010101010, 100101010101010101,1001010101010101010, 10010101010101010101] |