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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 10 |
| 2 | 10 |
| 3 | 100 |
| 4 | 10100 |
| 5 | 11000 |
| 6 | 1000 |
| 7 | 11010000 |
| 8 | 101010000 |
| 9 | 110100000 |
| 10 | 10100000 |
| 11 | 110101000000 |
| 12 | 1010101000000 |
| 13 | 1100110000000 |
| 14 | 110010000000 |
| 15 | 1100010100000000 |
| 16 | 10111010100000000 |
| 17 | 11110101000000000 |
| 18 | 10101000000000 |
| 19 | 11000101010000000000 |
| 20 | 101110101010000000000 |
[1,10,10,100,10100,11000,1000,11010000,101010000, 110100000,10100000,110101000000,1010101000000, 1100110000000,110010000000,1100010100000000, 10111010100000000,11110101000000000, 10101000000000,11000101010000000000, 101110101010000000000] |