The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 11 |
| 3 | 1000 |
| 4 | 11 |
| 5 | 111100 |
| 6 | 1001 |
| 7 | 11101111 |
| 8 | 11100 |
| 9 | 1111011011 |
| 10 | 110100 |
| 11 | 111110001111 |
| 12 | 100100 |
| 13 | 11111110101111 |
| 14 | 1110100 |
| 15 | 1111111100101111 |
| 16 | 1110100 |
| 17 | 111111111110111111 |
| 18 | 101011100 |
| 19 | 11111111110111100011 |
| 20 | 1111101000 |
| 21 | 1111111111100111111011 |
| 22 | 1001000100 |
[1,1,11,1000,11,111100,1001,11101111,11100, 1111011011,110100,111110001111,100100, 11111110101111,1110100,1111111100101111,1110100, 111111111110111111,101011100,11111111110111100011, 1111101000,1111111111100111111011,1001000100] |