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