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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | -1 |
| 2 | -1 |
| 3 | 0 |
| 4 | 0 |
| 5 | 1 |
| 6 | 0 |
| 7 | 1 |
| 8 | 0 |
| 9 | 1 |
| 10 | -1 |
| 11 | -1 |
| 12 | -1 |
| 13 | 0 |
| 14 | 1 |
| 15 | -1 |
| 16 | 1 |
| 17 | 0 |
| 18 | 2 |
| 19 | -2 |
| 20 | -2 |
| 21 | -1 |
| 22 | 1 |
| 23 | 2 |
| 24 | -1 |
| 25 | 2 |
| 26 | 1 |
| 27 | 3 |
| 28 | -3 |
| 29 | -3 |
| 30 | -2 |
| 31 | 1 |
| 32 | 3 |
| 33 | -2 |
| 34 | 3 |
| 35 | 0 |
| 36 | 5 |
| 37 | -5 |
| 38 | -5 |
| 39 | -3 |
| 40 | 1 |
| 41 | 5 |
| 42 | -3 |
| 43 | 5 |
| 44 | 1 |
| 45 | 7 |
| 46 | -7 |
| 47 | -7 |
| 48 | -5 |
| 49 | 2 |
| 50 | 7 |
| 51 | -4 |
| 52 | 7 |
| 53 | 1 |
| 54 | 11 |
| 55 | -11 |
| 56 | -11 |
| 57 | -6 |
| 58 | 3 |
| 59 | 11 |
| 60 | -6 |
| 61 | 11 |
| 62 | 2 |
| 63 | 15 |
| 64 | -15 |
| 65 | -15 |
| 66 | -10 |
| 67 | 4 |
| 68 | 15 |
| 69 | -9 |
| 70 | 14 |
| 71 | 2 |
| 72 | 22 |
| 73 | -22 |
| 74 | -22 |
| 75 | -13 |
| 76 | 6 |
| 77 | 21 |
| 78 | -12 |
| 79 | 21 |
| 80 | 4 |
| 81 | 30 |
| 82 | -30 |
| 83 | -30 |
| 84 | -19 |
| 85 | 8 |
| 86 | 29 |
| 87 | -17 |
| 88 | 28 |
| 89 | 4 |
| 90 | 42 |
[1,-1,-1,0,0,1,0,1,0,1,-1,-1,-1,0,1,-1,1,0,2,-2, -2,-1,1,2,-1,2,1,3,-3,-3,-2,1,3,-2,3,0,5,-5,-5,-3, 1,5,-3,5,1,7,-7,-7,-5,2,7,-4,7,1,11,-11,-11,-6,3, 11,-6,11,2,15,-15,-15,-10,4,15,-9,14,2,22,-22,-22, -13,6,21,-12,21,4,30,-30,-30,-19,8,29,-17,28,4,42] |