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