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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 24 |
| 3 | 432 |
| 4 | 17496 |
| 5 | 1658232 |
| 6 | 367125912 |
| 7 | 191184793128 |
| 8 | 234385100907480 |
| 9 | 677856222475099560 |
| 10 | 4627785508146660629232 |
| 11 | 74650443539914896103253016 |
| 12 | 2846446729148572555427535908448 |
| 13 | 256684477494955879310882598953790768 |
[3,24,432,17496,1658232,367125912,191184793128, 234385100907480,677856222475099560, 4627785508146660629232,74650443539914896103253016, 2846446729148572555427535908448, 256684477494955879310882598953790768] |