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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | -32 |
| 2 | 464 |
| 3 | -3968 |
| 4 | 21576 |
| 5 | -72384 |
| 6 | 109120 |
| 7 | 215296 |
| 8 | -1542684 |
| 9 | 3135712 |
| 10 | 217248 |
| 11 | -14153856 |
| 12 | 25215616 |
| 13 | 2704192 |
| 14 | -60182656 |
| 15 | 43083520 |
| 16 | 52111434 |
| 17 | 50631680 |
| 18 | -328746320 |
| 19 | -68928128 |
| 20 | 1172526144 |
| 21 | -825260672 |
| 22 | -1202344640 |
[1,-32,464,-3968,21576,-72384,109120,215296, -1542684,3135712,217248,-14153856,25215616, 2704192,-60182656,43083520,52111434,50631680, -328746320,-68928128,1172526144,-825260672, -1202344640] |