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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 11 |
| 2 | 1 |
| 3 | 111 |
| 4 | 1001 |
| 5 | 11111 |
| 6 | 1001 |
| 7 | 111111 |
| 8 | 11000001 |
| 9 | 101001111 |
| 10 | 1011111001 |
| 11 | 11100001111 |
| 12 | 101111110001 |
| 13 | 1110000011111 |
| 14 | 10111111101001 |
| 15 | 111000000011111 |
| 16 | 1011001101100001 |
| 17 | 11111101010101111 |
| 18 | 100000010101011001 |
| 19 | 1101101101010101111 |
| 20 | 10011010110111010001 |
[1,11,1,111,1001,11111,1001,111111,11000001, 101001111,1011111001,11100001111,101111110001, 1110000011111,10111111101001,111000000011111, 1011001101100001,11111101010101111, 100000010101011001,1101101101010101111, 10011010110111010001] |