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| n | a(n) |
|---|---|
| 1 | 13 |
| 2 | 2057 |
| 3 | 141460 |
| 4 | 8980645 |
| 5 | 578185580 |
| 6 | 37529013812 |
| 7 | 2443612706889 |
| 8 | 158784115135859 |
| 9 | 10325602150894612 |
| 10 | 671207897573507284 |
| 11 | 43631583378058347698 |
| 12 | 2836674439983859775124 |
| 13 | 184408814903864188587732 |
[13,2057,141460,8980645,578185580,37529013812, 2443612706889,158784115135859,10325602150894612, 671207897573507284,43631583378058347698, 2836674439983859775124,184408814903864188587732] |