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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | -1 |
| 2 | -2 |
| 3 | 3 |
| 4 | -1 |
| 5 | -5 |
| 6 | 9 |
| 7 | 3 |
| 8 | -20 |
| 9 | 16 |
| 10 | 20 |
| 11 | -54 |
| 12 | 19 |
| 13 | 89 |
| 14 | -123 |
| 15 | -56 |
| 16 | 287 |
| 17 | -181 |
| 18 | -383 |
| 19 | 748 |
| 20 | 37 |
| 21 | -1520 |
| 22 | 1406 |
| 23 | 1619 |
| 24 | -4439 |
| 25 | 1190 |
| 26 | 7768 |
| 27 | -10102 |
| 28 | -5494 |
| 29 | 25673 |
| 30 | -14754 |
| 31 | -36660 |
| 32 | 66367 |
| 33 | 7047 |
| 34 | -139852 |
| 35 | 125785 |
| 36 | 153573 |
| 37 | -405349 |
| 38 | 98671 |
| 39 | 712275 |
| 40 | -909382 |
| 41 | -514965 |
| 42 | 2332540 |
| 43 | -1303341 |
[1,-1,-2,3,-1,-5,9,3,-20,16,20,-54,19,89,-123,-56, 287,-181,-383,748,37,-1520,1406,1619,-4439,1190, 7768,-10102,-5494,25673,-14754,-36660,66367,7047, -139852,125785,153573,-405349,98671,712275, -909382,-514965,2332540,-1303341] |