The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 1 |
| 3 | 0 |
| 4 | 101 |
| 5 | 0 |
| 6 | 10101 |
| 7 | 0 |
| 8 | 1011101 |
| 9 | 1000 |
| 10 | 101000001 |
| 11 | 11100 |
| 12 | 10111001001 |
| 13 | 10000000 |
| 14 | 1010000111101 |
| 15 | 110011000 |
| 16 | 101110000000001 |
| 17 | 100111101100 |
| 18 | 10100000011000001 |
| 19 | 1111000001100 |
| 20 | 1011100110011100001 |
| 21 | 1000000001001100 |
| 22 | 101000011110100000001 |
| 23 | 11001100001001100 |
[1,0,1,0,101,0,10101,0,1011101,1000,101000001, 11100,10111001001,10000000,1010000111101, 110011000,101110000000001,100111101100, 10100000011000001,1111000001100, 1011100110011100001,1000000001001100, 101000011110100000001,11001100001001100] |