| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1228158 |
| 3 | 484086357207 |
| 4 | 4805323147589984 |
| 5 | 6063609955178082875 |
| 6 | 2072592733807533035358 |
| 7 | 287612372569381586086269 |
| 8 | 20632358601785638477436416 |
| 9 | 894188910508179779377279557 |
[1,1228158,484086357207,4805323147589984, 6063609955178082875,2072592733807533035358, 287612372569381586086269, 20632358601785638477436416, 894188910508179779377279557] |