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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 17 |
| 3 | 1540 |
| 4 | 461105 |
| 5 | 350813126 |
| 6 | 573843627152 |
| 7 | 1797582928354025 |
| 8 | 9904754169831094065 |
| 9 | 89944005095677792967482 |
| 10 | 1278494002506675052860358142 |
| 11 | 27281796399886236251265603339575 |
| 12 | 844252087185585895268923657508727440 |
| 13 | 36800471170748991972750857754287551544147 |
[1,1,17,1540,461105,350813126,573843627152, 1797582928354025,9904754169831094065, 89944005095677792967482, 1278494002506675052860358142, 27281796399886236251265603339575, 844252087185585895268923657508727440, 36800471170748991972750857754287551544147] |