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| n | a(n) |
|---|---|
| 1 | 49 |
| 2 | 16856 |
| 3 | 40370463 |
| 4 | 678263443312 |
| 5 | 79792944561055313 |
| 6 | 65712442156478841194856 |
| 7 | 378818757978106938161558820799 |
| 8 | 15286701010761334171872123930835647200 |
[49,16856,40370463,678263443312,79792944561055313, 65712442156478841194856, 378818757978106938161558820799, 15286701010761334171872123930835647200] |