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| n | a(n) |
|---|---|
| -1 | 1 |
| 0 | -3 |
| 1 | 3 |
| 2 | -4 |
| 3 | 9 |
| 4 | -12 |
| 5 | 15 |
| 6 | -24 |
| 7 | 39 |
| 8 | -52 |
| 9 | 66 |
| 10 | -96 |
| 11 | 130 |
| 12 | -168 |
| 13 | 219 |
| 14 | -292 |
| 15 | 390 |
| 16 | -492 |
| 17 | 625 |
| 18 | -804 |
| 19 | 1023 |
| 20 | -1280 |
| 21 | 1599 |
| 22 | -2016 |
| 23 | 2508 |
| 24 | -3096 |
| 25 | 3807 |
| 26 | -4688 |
| 27 | 5760 |
| 28 | -7020 |
| 29 | 8532 |
| 30 | -10368 |
| 31 | 12585 |
| 32 | -15156 |
| 33 | 18213 |
| 34 | -21912 |
| 35 | 26287 |
| 36 | -31404 |
| 37 | 37410 |
| 38 | -44584 |
| 39 | 53004 |
| 40 | -62784 |
| 41 | 74245 |
| 42 | -87768 |
[1,-3,3,-4,9,-12,15,-24,39,-52,66,-96,130,-168, 219,-292,390,-492,625,-804,1023,-1280,1599,-2016, 2508,-3096,3807,-4688,5760,-7020,8532,-10368, 12585,-15156,18213,-21912,26287,-31404,37410, -44584,53004,-62784,74245,-87768] |