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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | -1 |
| 3 | 1 |
| 4 | 0 |
| 5 | 1 |
| 6 | 1 |
| 7 | 1 |
| 8 | 1 |
| 9 | -1 |
| 10 | 1 |
| 11 | 2 |
| 12 | 5 |
| 13 | 2 |
| 14 | 1 |
| 15 | 1 |
| 16 | 3 |
| 17 | 13 |
| 18 | 29 |
| 19 | 9 |
| 20 | -1 |
| 21 | 1 |
| 22 | 4 |
| 23 | 25 |
| 24 | 116 |
| 25 | 233 |
| 26 | 44 |
| 27 | 1 |
| 28 | 1 |
| 29 | 5 |
| 30 | 41 |
| 31 | 299 |
| 32 | 1393 |
| 33 | 2329 |
| 34 | 265 |
| 35 | -1 |
| 36 | 1 |
| 37 | 6 |
| 38 | 61 |
| 39 | 614 |
| 40 | 4785 |
| 41 | 20894 |
| 42 | 27949 |
| 43 | 1854 |
| 44 | 1 |
| 45 | 1 |
| 46 | 7 |
| 47 | 85 |
| 48 | 1097 |
| 49 | 12281 |
| 50 | 95699 |
| 51 | 376093 |
| 52 | 391285 |
| 53 | 14833 |
| 54 | -1 |
| 55 | 1 |
| 56 | 8 |
| 57 | 113 |
| 58 | 1784 |
| 59 | 26329 |
| 60 | 307024 |
| 61 | 2296777 |
| 62 | 7897952 |
| 63 | 6260561 |
| 64 | 133496 |
| 65 | 1 |
[1,1,-1,1,0,1,1,1,1,-1,1,2,5,2,1,1,3,13,29,9,-1,1, 4,25,116,233,44,1,1,5,41,299,1393,2329,265,-1,1,6, 61,614,4785,20894,27949,1854,1,1,7,85,1097,12281, 95699,376093,391285,14833,-1,1,8,113,1784,26329, 307024,2296777,7897952,6260561,133496,1] |