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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | -1 |
| 3 | 2 |
| 4 | -3 |
| 5 | 5 |
| 6 | -6 |
| 7 | 10 |
| 8 | -13 |
| 9 | 19 |
| 10 | -25 |
| 11 | 36 |
| 12 | -46 |
| 13 | 64 |
| 14 | -82 |
| 15 | 110 |
| 16 | -139 |
| 17 | 184 |
| 18 | -231 |
| 19 | 300 |
| 20 | -375 |
| 21 | 480 |
| 22 | -596 |
| 23 | 754 |
| 24 | -930 |
| 25 | 1165 |
| 26 | -1428 |
| 27 | 1772 |
| 28 | -2162 |
| 29 | 2662 |
| 30 | -3230 |
| 31 | 3952 |
| 32 | -4773 |
| 33 | 5800 |
| 34 | -6976 |
| 35 | 8430 |
| 36 | -10093 |
| 37 | 12136 |
| 38 | -14476 |
| 39 | 17320 |
| 40 | -20585 |
| 41 | 24526 |
| 42 | -29044 |
| 43 | 34466 |
| 44 | -40684 |
| 45 | 48095 |
[1,-1,2,-3,5,-6,10,-13,19,-25,36,-46,64,-82,110, -139,184,-231,300,-375,480,-596,754,-930,1165, -1428,1772,-2162,2662,-3230,3952,-4773,5800,-6976, 8430,-10093,12136,-14476,17320,-20585,24526, -29044,34466,-40684,48095] |