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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 101 |
| 3 | 0 |
| 4 | 10111 |
| 5 | 100 |
| 6 | 1010101 |
| 7 | 10100 |
| 8 | 101000001 |
| 9 | 1011100 |
| 10 | 10101010101 |
| 11 | 101001000 |
| 12 | 1010001001011 |
| 13 | 10101000010 |
| 14 | 101010001011000 |
| 15 | 1010101011011 |
| 16 | 10100010101011110 |
| 17 | 101010101011110 |
| 18 | 1010100010101010110 |
| 19 | 10101010101010110 |
| 20 | 101000100010101010110 |
[1,0,101,0,10111,100,1010101,10100,101000001, 1011100,10101010101,101001000,1010001001011, 10101000010,101010001011000,1010101011011, 10100010101011110,101010101011110, 1010100010101010110,10101010101010110, 101000100010101010110] |