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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 294 |
| 3 | 11664 |
| 4 | 367500 |
| 5 | 10609215 |
| 6 | 292626432 |
| 7 | 7839321861 |
| 8 | 205683135000 |
| 9 | 5312031978672 |
| 10 | 135495143785470 |
| 11 | 3421536337406913 |
| 12 | 85686871818240000 |
| 13 | 2130987634616000199 |
| 14 | 52682956706683197258 |
| 15 | 1295799745309605101520 |
| 16 | 31730077997731715070000 |
[3,294,11664,367500,10609215,292626432,7839321861, 205683135000,5312031978672,135495143785470, 3421536337406913,85686871818240000, 2130987634616000199,52682956706683197258, 1295799745309605101520,31730077997731715070000] |