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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 1 |
| 3 | -6 |
| 4 | 0 |
| 5 | 6 |
| 6 | 0 |
| 7 | -42 |
| 8 | 0 |
| 9 | 36 |
| 10 | 36 |
| 11 | 0 |
| 12 | -288 |
| 13 | 0 |
| 14 | 216 |
| 15 | 0 |
| 16 | 468 |
| 17 | 0 |
| 18 | -1944 |
| 19 | 0 |
| 20 | 1296 |
| 21 | -216 |
| 22 | 0 |
| 23 | 4536 |
| 24 | 0 |
| 25 | -12960 |
| 26 | 0 |
| 27 | 7776 |
| 28 | 0 |
| 29 | -4104 |
| 30 | 0 |
| 31 | 38880 |
| 32 | 0 |
| 33 | -85536 |
| 34 | 0 |
| 35 | 46656 |
| 36 | 1296 |
| 37 | 0 |
| 38 | -51840 |
| 39 | 0 |
| 40 | 311040 |
| 41 | 0 |
| 42 | -559872 |
| 43 | 0 |
| 44 | 279936 |
| 45 | 0 |
| 46 | 32400 |
| 47 | 0 |
| 48 | -544320 |
| 49 | 0 |
| 50 | 2379456 |
| 51 | 0 |
| 52 | -3639168 |
| 53 | 0 |
| 54 | 1679616 |
[1,0,1,-6,0,6,0,-42,0,36,36,0,-288,0,216,0,468,0, -1944,0,1296,-216,0,4536,0,-12960,0,7776,0,-4104, 0,38880,0,-85536,0,46656,1296,0,-51840,0,311040,0, -559872,0,279936,0,32400,0,-544320,0,2379456,0, -3639168,0,1679616] |