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| n | a(n) |
|---|---|
| 1 | -1 |
| 2 | -1 |
| 3 | 1 |
| 4 | -1 |
| 5 | 1 |
| 6 | -3 |
| 7 | 1 |
| 8 | 3 |
| 9 | 5 |
| 10 | -1 |
| 11 | 1 |
| 12 | 1 |
| 13 | 5 |
| 14 | 1 |
| 15 | 11 |
| 16 | 13 |
| 17 | 11 |
| 18 | 5 |
| 19 | 5 |
| 20 | 3 |
| 21 | 3 |
| 22 | 3 |
| 23 | 1 |
| 24 | 5 |
| 25 | 9 |
| 26 | 7 |
| 27 | 13 |
| 28 | 13 |
| 29 | 15 |
| 30 | 5 |
| 31 | 9 |
| 32 | 13 |
| 33 | 19 |
| 34 | 15 |
| 35 | 19 |
| 36 | 7 |
| 37 | 19 |
| 38 | 21 |
| 39 | 17 |
| 40 | 19 |
| 41 | 19 |
| 42 | 15 |
| 43 | 21 |
| 44 | 11 |
| 45 | 17 |
| 46 | 17 |
| 47 | 9 |
| 48 | 11 |
| 49 | 25 |
| 50 | 17 |
| 51 | 21 |
| 52 | 13 |
| 53 | 21 |
| 54 | 17 |
| 55 | 11 |
| 56 | 15 |
| 57 | 13 |
| 58 | 9 |
| 59 | 19 |
| 60 | 13 |
| 61 | 17 |
| 62 | 17 |
| 63 | 15 |
| 64 | 23 |
| 65 | 25 |
| 66 | 15 |
| 67 | 13 |
| 68 | 27 |
| 69 | 29 |
| 70 | 21 |
| 71 | 25 |
| 72 | 23 |
| 73 | 27 |
| 74 | 31 |
| 75 | 33 |
| 76 | 23 |
| 77 | 15 |
| 78 | 31 |
| 79 | 37 |
| 80 | 41 |
[-1,-1,1,-1,1,-3,1,3,5,-1,1,1,5,1,11,13,11,5,5,3, 3,3,1,5,9,7,13,13,15,5,9,13,19,15,19,7,19,21,17, 19,19,15,21,11,17,17,9,11,25,17,21,13,21,17,11,15, 13,9,19,13,17,17,15,23,25,15,13,27,29,21,25,23,27, 31,33,23,15,31,37,41] |