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| n | a(n) |
|---|---|
| 1 | 339026688000000 |
| 2 | 377975808000000 |
| 3 | 424639621324800 |
| 4 | 483184764518400 |
| 5 | 453984583680000 |
[339026688000000,377975808000000,424639621324800, 483184764518400,453984583680000] |