The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 11 |
| 2 | 110 |
| 3 | 1101 |
| 4 | 11011 |
| 5 | 110111 |
| 6 | 1101111 |
| 7 | 11011111 |
| 8 | 110111111 |
| 9 | 1101111111 |
| 10 | 11011111111 |
| 11 | 110111111111 |
| 12 | 1101111111111 |
| 13 | 11011111111111 |
| 14 | 110111111111111 |
| 15 | 1101111111111111 |
| 16 | 11011111111111111 |
| 17 | 110111111111111111 |
| 18 | 1101111111111111111 |
| 19 | 11011111111111111111 |
[1,11,110,1101,11011,110111,1101111,11011111, 110111111,1101111111,11011111111,110111111111, 1101111111111,11011111111111,110111111111111, 1101111111111111,11011111111111111, 110111111111111111,1101111111111111111, 11011111111111111111] |