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