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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 8 |
| 2 | -98 |
| 3 | -3376 |
| 4 | 20620 |
| 5 | 2352608 |
| 6 | 2118664 |
| 7 | -2269785664 |
| 8 | -20560850288 |
| 9 | 2777155418240 |
| 10 | 52194963065824 |
| 11 | -4081432073022208 |
| 12 | -125662880767476032 |
| 13 | 6929000903815364096 |
| 14 | 320078034126827436160 |
| 15 | -13154349776838626280448 |
| 16 | -883024421142899680112384 |
[1,8,-98,-3376,20620,2352608,2118664,-2269785664, -20560850288,2777155418240,52194963065824, -4081432073022208,-125662880767476032, 6929000903815364096,320078034126827436160, -13154349776838626280448, -883024421142899680112384] |