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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | -1 |
| 3 | -1 |
| 4 | 1 |
| 5 | 1 |
| 6 | -1 |
| 7 | 1 |
| 8 | -1 |
| 9 | -1 |
| 10 | 3 |
| 11 | -1 |
| 12 | 1 |
| 13 | 10 |
| 14 | 1 |
| 15 | -1 |
| 16 | 2 |
| 17 | 1 |
| 18 | -1 |
| 19 | 8 |
| 20 | -1 |
| 21 | -1 |
| 22 | 15 |
| 23 | 1 |
| 24 | 1 |
| 25 | 4 |
| 26 | 1 |
| 27 | -1 |
| 28 | 90 |
| 29 | 1 |
| 30 | 1 |
| 31 | 72 |
| 32 | 1 |
| 33 | -1 |
| 34 | 33 |
| 35 | 1 |
| 36 | -1 |
| 37 | 114 |
| 38 | 1 |
| 39 | -1 |
| 40 | 15 |
| 41 | 1 |
| 42 | 1 |
| 43 | 37 |
| 44 | -1 |
| 45 | -1 |
| 46 | 516 |
| 47 | 1 |
| 48 | 1 |
| 49 | 301 |
| 50 | 1 |
| 51 | -1 |
| 52 | 2029 |
| 53 | -1 |
| 54 | -1 |
| 55 | 54 |
| 56 | 1 |
| 57 | -1 |
| 58 | 23 |
| 59 | -1 |
| 60 | -1 |
| 61 | 4756 |
| 62 | -1 |
| 63 | -1 |
| 64 | 65 |
| 65 | 1 |
| 66 | 1 |
| 67 | 696 |
| 68 | 1 |
| 69 | -1 |
| 70 | 8503 |
| 71 | -1 |
| 72 | -1 |
| 73 | 3693 |
| 74 | 1 |
| 75 | 1 |
[1,-1,-1,1,1,-1,1,-1,-1,3,-1,1,10,1,-1,2,1,-1,8, -1,-1,15,1,1,4,1,-1,90,1,1,72,1,-1,33,1,-1,114,1, -1,15,1,1,37,-1,-1,516,1,1,301,1,-1,2029,-1,-1,54, 1,-1,23,-1,-1,4756,-1,-1,65,1,1,696,1,-1,8503,-1, -1,3693,1,1] |