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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | -1 |
| 2 | 1 |
| 3 | -1 |
| 4 | 0 |
| 5 | 2 |
| 6 | -3 |
| 7 | 3 |
| 8 | -2 |
| 9 | -1 |
| 10 | 5 |
| 11 | -8 |
| 12 | 8 |
| 13 | -5 |
| 14 | -2 |
| 15 | 12 |
| 16 | -18 |
| 17 | 18 |
| 18 | -11 |
| 19 | -5 |
| 20 | 24 |
| 21 | -37 |
| 22 | 37 |
| 23 | -21 |
| 24 | -10 |
| 25 | 47 |
| 26 | -72 |
| 27 | 71 |
| 28 | -40 |
| 29 | -19 |
| 30 | 88 |
| 31 | -133 |
| 32 | 131 |
| 33 | -73 |
| 34 | -35 |
| 35 | 156 |
| 36 | -236 |
| 37 | 232 |
| 38 | -127 |
| 39 | -61 |
| 40 | 270 |
| 41 | -407 |
| 42 | 397 |
| 43 | -216 |
| 44 | -104 |
| 45 | 455 |
| 46 | -682 |
| 47 | 664 |
| 48 | -359 |
| 49 | -172 |
| 50 | 747 |
| 51 | -1117 |
| 52 | 1084 |
| 53 | -582 |
| 54 | -279 |
[1,-1,1,-1,0,2,-3,3,-2,-1,5,-8,8,-5,-2,12,-18,18, -11,-5,24,-37,37,-21,-10,47,-72,71,-40,-19,88, -133,131,-73,-35,156,-236,232,-127,-61,270,-407, 397,-216,-104,455,-682,664,-359,-172,747,-1117, 1084,-582,-279] |