| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | -1 |
| 2 | 1 |
| 3 | -2 |
| 4 | 0 |
| 5 | 2 |
| 6 | -7 |
| 7 | -3 |
| 8 | 3 |
| 9 | 7 |
| 10 | -20 |
| 11 | -56 |
| 12 | 0 |
| 13 | 56 |
| 14 | 20 |
| 15 | -61 |
| 16 | -415 |
| 17 | -370 |
| 18 | 370 |
| 19 | 415 |
| 20 | 61 |
| 21 | -182 |
| 22 | -2632 |
| 23 | -5710 |
| 24 | 0 |
| 25 | 5710 |
| 26 | 2632 |
| 27 | 182 |
| 28 | -547 |
| 29 | -15155 |
| 30 | -64407 |
| 31 | -49735 |
| 32 | 49735 |
| 33 | 64407 |
| 34 | 15155 |
| 35 | 547 |
| 36 | -1640 |
| 37 | -82896 |
| 38 | -619696 |
| 39 | -1085840 |
| 40 | 0 |
| 41 | 1085840 |
| 42 | 619696 |
| 43 | 82896 |
| 44 | 1640 |
[0,-1,1,-2,0,2,-7,-3,3,7,-20,-56,0,56,20,-61,-415, -370,370,415,61,-182,-2632,-5710,0,5710,2632,182, -547,-15155,-64407,-49735,49735,64407,15155,547, -1640,-82896,-619696,-1085840,0,1085840,619696, 82896,1640] |