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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 10 |
| 3 | 5052 |
| 4 | 14240070 |
| 5 | 3152221563324450 |
| 6 | 157195096511273995860 |
| 7 | 2374214683408467590063771983920 |
| 8 | 618146855974818638210995488847340730 |
| 9 | 144946467754033586465978879886385830380958862710 |
[1,10,5052,14240070,3152221563324450, 157195096511273995860, 2374214683408467590063771983920, 618146855974818638210995488847340730, 144946467754033586465978879886385830380958862710] |