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