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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 7 |
| 5 | 11 |
| 6 | 101 |
| 7 | 111 |
| 8 | 1001 |
| 9 | 10001 |
| 10 | 10101 |
| 11 | 11011 |
| 12 | 100001 |
| 13 | 101101 |
| 14 | 110011 |
| 15 | 1000001 |
| 16 | 1001001 |
| 17 | 1100011 |
| 18 | 10000001 |
| 19 | 10011001 |
| 20 | 10100101 |
| 21 | 11000011 |
| 22 | 100000001 |
| 23 | 100010001 |
| 24 | 100101001 |
| 25 | 101000101 |
| 26 | 110000011 |
| 27 | 1000000001 |
| 28 | 1000110001 |
| 29 | 1010000101 |
| 30 | 1100000011 |
| 31 | 10000000001 |
[0,1,2,7,11,101,111,1001,10001,10101,11011,100001, 101101,110011,1000001,1001001,1100011,10000001, 10011001,10100101,11000011,100000001,100010001, 100101001,101000101,110000011,1000000001, 1000110001,1010000101,1100000011,10000000001] |