| n | a(n) |
|---|---|
| 3 | 158 |
| 4 | 156088 |
| 5 | 782302608 |
| 6 | 3066495867520 |
| 7 | 9917936135748078 |
| 8 | 22642585048896872004 |
| 9 | 33345615473419595766868 |
| 10 | 29642647961073636476540672 |
| 11 | 15336838587010185012371837454 |
| 12 | 4623468899613300617710624955144 |
[158,156088,782302608,3066495867520, 9917936135748078,22642585048896872004, 33345615473419595766868, 29642647961073636476540672, 15336838587010185012371837454, 4623468899613300617710624955144] |