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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 13 |
| 3 | 883 |
| 4 | 237051898781 |
| 5 | 17911135064090123664377811162569837 |
| 6 | 1230843829352095122161574066100819070684162503 |
[3,13,883,237051898781, 17911135064090123664377811162569837, 1230843829352095122161574066100819070684162503] |