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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | -1 |
| 2 | -4 |
| 3 | -6 |
| 4 | -4 |
| 5 | 19 |
| 6 | 60 |
| 7 | 131 |
| 8 | 149 |
| 9 | -4 |
| 10 | -572 |
| 11 | -1764 |
| 12 | -3485 |
| 13 | -4716 |
| 14 | -2658 |
| 15 | 7606 |
| 16 | 32944 |
| 17 | 77152 |
| 18 | 132586 |
| 19 | 161275 |
| 20 | 75150 |
| 21 | -281687 |
| 22 | -1111029 |
| 23 | -2560293 |
| 24 | -4470415 |
| 25 | -5922117 |
| 26 | -4603551 |
| 27 | 3799070 |
| 28 | 25573251 |
| 29 | 67259095 |
| 30 | 130430051 |
| 31 | 201158707 |
| 32 | 232853019 |
| 33 | 124749892 |
| 34 | -295134275 |
| 35 | -1260897993 |
| 36 | -2995361708 |
| 37 | -5515840117 |
[1,-1,-4,-6,-4,19,60,131,149,-4,-572,-1764,-3485, -4716,-2658,7606,32944,77152,132586,161275,75150, -281687,-1111029,-2560293,-4470415,-5922117, -4603551,3799070,25573251,67259095,130430051, 201158707,232853019,124749892,-295134275, -1260897993,-2995361708,-5515840117] |