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| n | a(n) |
|---|---|
| 1 | 3792 |
| 2 | 54984 |
| 3 | 54984 |
| 4 | 1029888 |
| 5 | 2496240 |
| 6 | 1029888 |
| 7 | 15953344 |
| 8 | 109504800 |
| 9 | 109504800 |
| 10 | 15953344 |
| 11 | 274387488 |
| 12 | 5108851584 |
| 13 | 18775196064 |
| 14 | 5108851584 |
| 15 | 274387488 |
| 16 | 4405125168 |
| 17 | 212153261712 |
| 18 | 2258698430400 |
| 19 | 2258698430400 |
| 20 | 212153261712 |
[3792,54984,54984,1029888,2496240,1029888, 15953344,109504800,109504800,15953344,274387488, 5108851584,18775196064,5108851584,274387488, 4405125168,212153261712,2258698430400, 2258698430400,212153261712] |