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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 51 |
| 3 | 9558 |
| 4 | 98612460 |
| 5 | 5887957252067828 |
| 6 | 499453888097584722752603691410216 |
| 7 | 64374739267553439324757181002125046128361976093811234838816138018 |
[3,51,9558,98612460,5887957252067828, 499453888097584722752603691410216, 64374739267553439324757181002125046128361976093811\ 234838816138018] |