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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 19 |
| 3 | 548 |
| 4 | 78901 |
| 5 | 36070982 |
| 6 | 82805758039 |
| 7 | 605336231791208 |
| 8 | 22229212008282455161 |
| 9 | 2599943776445794193452682 |
| 10 | 1527585017328101696333407084699 |
| 11 | 2858671468933430533899194300073611948 |
| 12 | 26873565540839814480301520088779437828129981 |
[1,2,19,548,78901,36070982,82805758039, 605336231791208,22229212008282455161, 2599943776445794193452682, 1527585017328101696333407084699, 2858671468933430533899194300073611948, 26873565540839814480301520088779437828129981] |