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| n | a(n) |
|---|---|
| 1 | 6 |
| 2 | 1572 |
| 3 | 1374208 |
| 4 | 1783839948 |
| 5 | 2711219461532 |
| 6 | 4389382785819252 |
| 7 | 7251826449700700016 |
| 8 | 11974982327518714139584 |
| 9 | 19562098569257627523741964 |
| 10 | 31456058103183393532138318824 |
[6,1572,1374208,1783839948,2711219461532, 4389382785819252,7251826449700700016, 11974982327518714139584, 19562098569257627523741964, 31456058103183393532138318824] |