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