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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | -1 |
| 3 | 3 |
| 4 | -4 |
| 5 | 5 |
| 6 | -5 |
| 7 | 7 |
| 8 | -12 |
| 9 | 9 |
| 10 | -9 |
| 11 | 11 |
| 12 | -20 |
| 13 | 13 |
| 14 | -13 |
| 15 | 15 |
| 16 | -32 |
| 17 | 17 |
| 18 | -21 |
| 19 | 19 |
| 20 | -36 |
| 21 | 21 |
| 22 | -21 |
| 23 | 23 |
| 24 | -60 |
| 25 | 25 |
| 26 | -25 |
| 27 | 27 |
| 28 | -52 |
| 29 | 29 |
| 30 | -45 |
| 31 | 31 |
| 32 | -80 |
| 33 | 33 |
| 34 | -33 |
| 35 | 35 |
| 36 | -84 |
| 37 | 37 |
| 38 | -37 |
| 39 | 39 |
| 40 | -108 |
| 41 | 41 |
| 42 | -65 |
| 43 | 43 |
| 44 | -84 |
| 45 | 45 |
| 46 | -45 |
| 47 | 47 |
| 48 | -160 |
| 49 | 49 |
| 50 | -65 |
| 51 | 51 |
| 52 | -100 |
| 53 | 53 |
| 54 | -81 |
| 55 | 55 |
| 56 | -156 |
| 57 | 57 |
[1,-1,3,-4,5,-5,7,-12,9,-9,11,-20,13,-13,15,-32, 17,-21,19,-36,21,-21,23,-60,25,-25,27,-52,29,-45, 31,-80,33,-33,35,-84,37,-37,39,-108,41,-65,43,-84, 45,-45,47,-160,49,-65,51,-100,53,-81,55,-156,57] |