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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 111 |
| 3 | 0 |
| 4 | 10101 |
| 5 | 11111 |
| 6 | 1100000 |
| 7 | 100111 |
| 8 | 100100000 |
| 9 | 100101001 |
| 10 | 11100101001 |
| 11 | 100101001 |
| 12 | 1010100101001 |
| 13 | 1111100101001 |
| 14 | 110000100101001 |
| 15 | 10010100101001 |
| 16 | 10010011100101001 |
| 17 | 10010010100101001 |
| 18 | 1110010010100111001 |
| 19 | 10010010100010001 |
| 20 | 101010010010101010101 |
[1,1,111,0,10101,11111,1100000,100111,100100000, 100101001,11100101001,100101001,1010100101001, 1111100101001,110000100101001,10010100101001, 10010011100101001,10010010100101001, 1110010010100111001,10010010100010001, 101010010010101010101] |