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| n | a(n) |
|---|---|
| 0 | 2 |
| 1 | -16 |
| 2 | 200 |
| 3 | 1024 |
| 4 | -765152 |
| 5 | 142708480 |
| 6 | -27846619008 |
| 7 | 6367245656064 |
| 8 | -1746851978927616 |
| 9 | 576681176370802688 |
| 10 | -228223153506206857216 |
| 11 | 107581169796591942238208 |
| 12 | -59934829639539220412555264 |
[2,-16,200,1024,-765152,142708480,-27846619008, 6367245656064,-1746851978927616, 576681176370802688,-228223153506206857216, 107581169796591942238208, -59934829639539220412555264] |