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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | -8 |
| 3 | -216 |
| 4 | -7552 |
| 5 | -349568 |
| 6 | -20281216 |
| 7 | -1350879232 |
| 8 | -84211707904 |
| 9 | 286327484416 |
| 10 | 2529465981566976 |
| 11 | 1100934401707376640 |
| 12 | 421697958276604264448 |
| 13 | 165461414536859529248768 |
| 14 | 69271409331127446269067264 |
[1,0,-8,-216,-7552,-349568,-20281216,-1350879232, -84211707904,286327484416,2529465981566976, 1100934401707376640,421697958276604264448, 165461414536859529248768, 69271409331127446269067264] |