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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 1 |
| 3 | 0 |
| 4 | 1 |
| 5 | 0 |
| 6 | 1 |
| 7 | 0 |
| 8 | 17 |
| 9 | 0 |
| 10 | 775 |
| 11 | 0 |
| 12 | 477481 |
| 13 | 0 |
| 14 | 267589 |
| 15 | 0 |
| 16 | 3362251073 |
| 17 | 0 |
| 18 | 421424697891 |
| 19 | 0 |
| 20 | 38751520678991 |
| 21 | 0 |
| 22 | 44386209501802003 |
| 23 | 0 |
| 24 | 228891128457907983257 |
| 25 | 0 |
| 26 | 1636462395711601387189 |
| 27 | 0 |
| 28 | 348063222218272291910609213 |
| 29 | 0 |
| 30 | 3710225622968600411572814809525 |
[0,1,1,0,1,0,1,0,17,0,775,0,477481,0,267589,0, 3362251073,0,421424697891,0,38751520678991,0, 44386209501802003,0,228891128457907983257,0, 1636462395711601387189,0, 348063222218272291910609213,0, 3710225622968600411572814809525] |