The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 111 |
| 3 | 1111 |
| 4 | 111 |
| 5 | 1111 |
| 6 | 1111111 |
| 7 | 1111111 |
| 8 | 11111111 |
| 9 | 1011111111 |
| 10 | 10111111111 |
| 11 | 10111111111 |
| 12 | 110011111111 |
| 13 | 1010111111111 |
| 14 | 10111111111111 |
| 15 | 111111111111111 |
| 16 | 1111110111111111 |
| 17 | 11111101111111111 |
| 18 | 111111111111111111 |
| 19 | 1111111111111111111 |
| 20 | 11111111111111111111 |
[1,1,111,1111,111,1111,1111111,1111111,11111111, 1011111111,10111111111,10111111111,110011111111, 1010111111111,10111111111111,111111111111111, 1111110111111111,11111101111111111, 111111111111111111,1111111111111111111, 11111111111111111111] |