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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 100 |
| 4 | 800 |
| 5 | 152100 |
| 6 | 2737800 |
| 7 | 1156000000 |
| 8 | 36992000000 |
| 9 | 27619018944400 |
| 10 | 1380950947220000 |
| 11 | 1606635342973440000 |
| 12 | 115677744694087680000 |
| 13 | 193495923191341225000000 |
| 14 | 18962600472751440050000000 |
[1,2,100,800,152100,2737800,1156000000, 36992000000,27619018944400,1380950947220000, 1606635342973440000,115677744694087680000, 193495923191341225000000, 18962600472751440050000000] |