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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | -264 |
| 7 | 0 |
| 8 | 0 |
| 9 | -440 |
| 10 | 0 |
| 11 | 0 |
| 12 | 69672 |
| 13 | 0 |
| 14 | 0 |
| 15 | 232320 |
| 16 | 0 |
| 17 | 0 |
| 18 | -18193472 |
| 19 | 0 |
| 20 | 0 |
| 21 | -91977600 |
| 22 | 0 |
| 23 | 0 |
| 24 | 4699183680 |
| 25 | 0 |
| 26 | 0 |
| 27 | 32281638400 |
| 28 | 0 |
| 29 | 0 |
| 30 | -1199677704192 |
| 31 | 0 |
| 32 | 0 |
| 33 | -10587785894400 |
| 34 | 0 |
| 35 | 0 |
| 36 | 302398212602368 |
| 37 | 0 |
| 38 | 0 |
| 39 | 3322258906644480 |
| 40 | 0 |
| 41 | 0 |
[1,0,0,0,0,0,-264,0,0,-440,0,0,69672,0,0,232320,0, 0,-18193472,0,0,-91977600,0,0,4699183680,0,0, 32281638400,0,0,-1199677704192,0,0, -10587785894400,0,0,302398212602368,0,0, 3322258906644480,0,0] |