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| n | a(n) |
|---|---|
| 1 | 973388 |
| 2 | 3048096 |
| 3 | 10792800 |
| 4 | 157206240 |
| 5 | 1990281312 |
| 6 | 24408220320 |
| 7 | 373319837280 |
| 8 | 4839970998240 |
| 9 | 59527064527200 |
| 10 | 912767002149600 |
| 11 | 11833729090696800 |
| 12 | 145543672769004000 |
| 13 | 2231715320255772000 |
| 14 | 28933467626753676000 |
[973388,3048096,10792800,157206240,1990281312, 24408220320,373319837280,4839970998240, 59527064527200,912767002149600,11833729090696800, 145543672769004000,2231715320255772000, 28933467626753676000] |