The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 0 |
| 3 | 11 |
| 4 | 10000 |
| 5 | 111 |
| 6 | 0 |
| 7 | 1111 |
| 8 | 111000000 |
| 9 | 11111 |
| 10 | 10000000000 |
| 11 | 111111 |
| 12 | 1100000000 |
| 13 | 1111111 |
| 14 | 110000000000000 |
| 15 | 1000011111111 |
| 16 | 10000110000000000 |
| 17 | 111111111 |
| 18 | 1000000000000000 |
| 19 | 100001111111111 |
| 20 | 11000000000000 |
| 21 | 11111111111 |
| 22 | 1100000000000000000 |
| 23 | 10000111111111111 |
[1,1,0,11,10000,111,0,1111,111000000,11111, 10000000000,111111,1100000000,1111111, 110000000000000,1000011111111,10000110000000000, 111111111,1000000000000000,100001111111111, 11000000000000,11111111111,1100000000000000000, 10000111111111111] |