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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 101 |
| 3 | 1011 |
| 4 | 1011 |
| 5 | 100111 |
| 6 | 1110111 |
| 7 | 101111 |
| 8 | 10101111 |
| 9 | 1001011111 |
| 10 | 11101011111 |
| 11 | 1010111111 |
| 12 | 101010111111 |
| 13 | 10011001111111 |
| 14 | 111001101111111 |
| 15 | 11101011111111 |
| 16 | 1000101011111111 |
| 17 | 100001010111111111 |
| 18 | 1111101010111111111 |
| 19 | 111010101111111111 |
| 20 | 10001010101111111111 |
[1,1,101,1011,1011,100111,1110111,101111,10101111, 1001011111,11101011111,1010111111,101010111111, 10011001111111,111001101111111,11101011111111, 1000101011111111,100001010111111111, 1111101010111111111,111010101111111111, 10001010101111111111] |