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| n | a(n) |
|---|---|
| 1 | 488 |
| 2 | 17280 |
| 3 | 672784 |
| 4 | 26836512 |
| 5 | 1080643264 |
| 6 | 43699580872 |
| 7 | 1770698081072 |
| 8 | 71817607508112 |
| 9 | 2914205675816528 |
| 10 | 118279017948229984 |
| 11 | 4801123318150081688 |
| 12 | 194895185405773535816 |
| 13 | 7911713694335733918224 |
| 14 | 321177747138973784749952 |
[488,17280,672784,26836512,1080643264,43699580872, 1770698081072,71817607508112,2914205675816528, 118279017948229984,4801123318150081688, 194895185405773535816,7911713694335733918224, 321177747138973784749952] |