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| n | a(n) |
|---|---|
| 0 | 2 |
| 1 | 2 |
| 2 | 6 |
| 3 | 691 |
| 4 | 7234 |
| 5 | 523833 |
| 6 | 3545461365 |
| 7 | 3392780147 |
| 8 | 15418642082434 |
| 9 | 26315271553053477373 |
| 10 | 261082718496449122051 |
| 11 | 2530297234481911294093 |
| 12 | 39265823582984723803743892829 |
| 13 | 61628132164268458257532691681 |
[2,2,6,691,7234,523833,3545461365,3392780147, 15418642082434,26315271553053477373, 261082718496449122051,2530297234481911294093, 39265823582984723803743892829, 61628132164268458257532691681] |