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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | -1 |
| 2 | -1 |
| 3 | 2 |
| 4 | -1 |
| 5 | 5 |
| 6 | -5 |
| 7 | -1 |
| 8 | 6 |
| 9 | 3 |
| 10 | -21 |
| 11 | 14 |
| 12 | -1 |
| 13 | 7 |
| 14 | 7 |
| 15 | -28 |
| 16 | -28 |
| 17 | 84 |
| 18 | -42 |
| 19 | -1 |
| 20 | 8 |
| 21 | 8 |
| 22 | -36 |
| 23 | 4 |
| 24 | -72 |
| 25 | 120 |
| 26 | -12 |
| 27 | 180 |
| 28 | -330 |
| 29 | 132 |
| 30 | -1 |
| 31 | 9 |
| 32 | 9 |
| 33 | -45 |
| 34 | 9 |
| 35 | -90 |
| 36 | 165 |
| 37 | -45 |
| 38 | -45 |
| 39 | 495 |
| 40 | -495 |
| 41 | 165 |
| 42 | -990 |
| 43 | 1287 |
| 44 | -429 |
[1,-1,-1,2,-1,5,-5,-1,6,3,-21,14,-1,7,7,-28,-28, 84,-42,-1,8,8,-36,4,-72,120,-12,180,-330,132,-1,9, 9,-45,9,-90,165,-45,-45,495,-495,165,-990,1287, -429] |