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| n | a(n) |
|---|---|
| 1 | 28259556 |
| 2 | 29707151720 |
| 3 | 24368030395844 |
| 4 | 16821962566961468 |
| 5 | 10397256424705262728 |
| 6 | 5953229517409280684864 |
[28259556,29707151720,24368030395844, 16821962566961468,10397256424705262728, 5953229517409280684864] |