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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | -6 |
| 2 | 8118 |
| 3 | 1740636 |
| 4 | 937783902 |
| 5 | 364856395608 |
| 6 | 172736345164500 |
| 7 | 78278100914583312 |
| 8 | 37268001893898954198 |
| 9 | 17773741638825114790854 |
| 10 | 8624927270409695050736952 |
| 11 | 4214914849580580859932456300 |
| 12 | 2078204723099375850950863499028 |
[1,-6,8118,1740636,937783902,364856395608, 172736345164500,78278100914583312, 37268001893898954198,17773741638825114790854, 8624927270409695050736952, 4214914849580580859932456300, 2078204723099375850950863499028] |