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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | -3 |
| 2 | 49 |
| 3 | -1691 |
| 4 | 108961 |
| 5 | -10415699 |
| 6 | 1476822801 |
| 7 | -274051642731 |
| 8 | 68034310337345 |
| 9 | -20698489943585315 |
| 10 | 7945165226724184305 |
| 11 | -3587174193714146380475 |
| 12 | 1968139895275233488888545 |
| 13 | -1234522114580149082237390195 |
| 14 | 916981332590411294370399470545 |
[1,-3,49,-1691,108961,-10415699,1476822801, -274051642731,68034310337345,-20698489943585315, 7945165226724184305,-3587174193714146380475, 1968139895275233488888545, -1234522114580149082237390195, 916981332590411294370399470545] |