The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 10 |
| 2 | 11 |
| 3 | 1100 |
| 4 | 111 |
| 5 | 111000 |
| 6 | 1111 |
| 7 | 11110110 |
| 8 | 11011 |
| 9 | 1111101100 |
| 10 | 110011 |
| 11 | 111111011100 |
| 12 | 1111111 |
| 13 | 11111110110110 |
| 14 | 11011111 |
| 15 | 1111111101111000 |
| 16 | 110000111 |
| 17 | 111111111011111010 |
| 18 | 1110010111 |
| 19 | 11111111110111101100 |
| 20 | 11001010011 |
| 21 | 1111111111101111111110 |
| 22 | 110110001011 |
[1,10,11,1100,111,111000,1111,11110110,11011, 1111101100,110011,111111011100,1111111, 11111110110110,11011111,1111111101111000, 110000111,111111111011111010,1110010111, 11111111110111101100,11001010011, 1111111111101111111110,110110001011] |