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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 13 |
| 3 | 439 |
| 4 | 27961 |
| 5 | 3034961 |
| 6 | 522134761 |
| 7 | 131870760799 |
| 8 | 45954960939217 |
| 9 | 21107054541321649 |
| 10 | 12345678910987654321 |
| 11 | 8954302429379707945271 |
| 12 | 7883984846509322664831433 |
| 13 | 8281481197999449959084458465 |
| 14 | 10228838696316240496325238416281 |
| 15 | 14674825961700306151086890240104831 |
[1,13,439,27961,3034961,522134761,131870760799, 45954960939217,21107054541321649, 12345678910987654321,8954302429379707945271, 7883984846509322664831433, 8281481197999449959084458465, 10228838696316240496325238416281, 14674825961700306151086890240104831] |