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| n | a(n) |
|---|---|
| 1 | 7 |
| 2 | 1316 |
| 3 | 1596154 |
| 4 | 11066406572 |
| 5 | 437975212393770 |
| 6 | 98959148496365005996 |
| 7 | 127648944977287507883659858 |
| 8 | 940014634186299364055616416384316 |
[7,1316,1596154,11066406572,437975212393770, 98959148496365005996,127648944977287507883659858, 940014634186299364055616416384316] |