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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 0 |
| 3 | -2 |
| 4 | 6 |
| 5 | 0 |
| 6 | -1 |
| 7 | 15 |
| 8 | 0 |
| 9 | 4 |
| 10 | 24 |
| 11 | 0 |
| 12 | -3 |
| 13 | 48 |
| 14 | 0 |
| 15 | 0 |
| 16 | 78 |
| 17 | 0 |
| 18 | 7 |
| 19 | 132 |
| 20 | 0 |
| 21 | -8 |
| 22 | 204 |
| 23 | 0 |
| 24 | -3 |
| 25 | 324 |
| 26 | 0 |
| 27 | 14 |
| 28 | 486 |
| 29 | 0 |
| 30 | -14 |
| 31 | 735 |
| 32 | 0 |
| 33 | -4 |
| 34 | 1068 |
| 35 | 0 |
| 36 | 26 |
| 37 | 1563 |
| 38 | 0 |
| 39 | -26 |
| 40 | 2220 |
| 41 | 0 |
| 42 | -7 |
| 43 | 3159 |
| 44 | 0 |
| 45 | 44 |
| 46 | 4404 |
| 47 | 0 |
| 48 | -41 |
| 49 | 6135 |
| 50 | 0 |
| 51 | -10 |
| 52 | 8412 |
| 53 | 0 |
| 54 | 73 |
| 55 | 11508 |
| 56 | 0 |
| 57 | -72 |
| 58 | 15552 |
| 59 | 0 |
| 60 | -20 |
| 61 | 20964 |
| 62 | 0 |
| 63 | 118 |
| 64 | 27978 |
| 65 | 0 |
| 66 | -109 |
[1,3,0,-2,6,0,-1,15,0,4,24,0,-3,48,0,0,78,0,7,132, 0,-8,204,0,-3,324,0,14,486,0,-14,735,0,-4,1068,0, 26,1563,0,-26,2220,0,-7,3159,0,44,4404,0,-41,6135, 0,-10,8412,0,73,11508,0,-72,15552,0,-20,20964,0, 118,27978,0,-109] |