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