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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 2 |
| 3 | 2 |
| 4 | 0 |
| 5 | -2 |
| 6 | 0 |
| 7 | -4 |
| 8 | 0 |
| 9 | 4 |
| 10 | -2 |
| 11 | 0 |
| 12 | 12 |
| 13 | 0 |
| 14 | -10 |
| 15 | 0 |
| 16 | 12 |
| 17 | 0 |
| 18 | -40 |
| 19 | 0 |
| 20 | 28 |
| 21 | 4 |
| 22 | 0 |
| 23 | -60 |
| 24 | 0 |
| 25 | 140 |
| 26 | 0 |
| 27 | -84 |
| 28 | 0 |
| 29 | -40 |
| 30 | 0 |
| 31 | 280 |
| 32 | 0 |
| 33 | -504 |
| 34 | 0 |
| 35 | 264 |
| 36 | -10 |
| 37 | 0 |
| 38 | 280 |
| 39 | 0 |
| 40 | -1260 |
| 41 | 0 |
| 42 | 1848 |
| 43 | 0 |
| 44 | -858 |
| 45 | 0 |
| 46 | 140 |
| 47 | 0 |
| 48 | -1680 |
| 49 | 0 |
| 50 | 5544 |
| 51 | 0 |
| 52 | -6864 |
| 53 | 0 |
| 54 | 2860 |
| 55 | 28 |
| 56 | 0 |
| 57 | -1260 |
| 58 | 0 |
| 59 | 9240 |
| 60 | 0 |
| 61 | -24024 |
| 62 | 0 |
| 63 | 25740 |
| 64 | 0 |
| 65 | -9724 |
[1,0,2,2,0,-2,0,-4,0,4,-2,0,12,0,-10,0,12,0,-40,0, 28,4,0,-60,0,140,0,-84,0,-40,0,280,0,-504,0,264, -10,0,280,0,-1260,0,1848,0,-858,0,140,0,-1680,0, 5544,0,-6864,0,2860,28,0,-1260,0,9240,0,-24024,0, 25740,0,-9724] |