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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 2 |
| 6 | 0 |
| 7 | 0 |
| 8 | 12 |
| 9 | -6 |
| 10 | 0 |
| 11 | 0 |
| 12 | 48 |
| 13 | -72 |
| 14 | 36 |
| 15 | 0 |
| 16 | 0 |
| 17 | 160 |
| 18 | -540 |
| 19 | 720 |
| 20 | -320 |
| 21 | 0 |
| 22 | 0 |
| 23 | 480 |
| 24 | -3240 |
| 25 | 8640 |
| 26 | -9600 |
| 27 | 3750 |
| 28 | 0 |
| 29 | 0 |
| 30 | 1344 |
| 31 | -17010 |
| 32 | 80640 |
| 33 | -168000 |
| 34 | 157500 |
| 35 | -54432 |
| 36 | 0 |
| 37 | 0 |
| 38 | 3584 |
| 39 | -81648 |
| 40 | 645120 |
| 41 | -2240000 |
| 42 | 3780000 |
| 43 | -3048192 |
| 44 | 941192 |
| 45 | 0 |
| 46 | 0 |
| 47 | 9216 |
| 48 | -367416 |
| 49 | 4644864 |
| 50 | -25200000 |
| 51 | 68040000 |
| 52 | -96018048 |
| 53 | 67765824 |
| 54 | -18874368 |
[0,0,0,0,0,2,0,0,12,-6,0,0,48,-72,36,0,0,160,-540, 720,-320,0,0,480,-3240,8640,-9600,3750,0,0,1344, -17010,80640,-168000,157500,-54432,0,0,3584, -81648,645120,-2240000,3780000,-3048192,941192,0, 0,9216,-367416,4644864,-25200000,68040000, -96018048,67765824,-18874368] |