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