n | a(n) |
---|---|
6 | 1 |
7 | 63 |
8 | 2730 |
9 | 103950 |
10 | 3786615 |
11 | 137162025 |
12 | 5039703900 |
13 | 189883593900 |
14 | 7381251402525 |
15 | 297032627967075 |
16 | 12395985005353950 |
17 | 536910000482705850 |
18 | 24139951470365605875 |
19 | 1126381171697414758125 |
20 | 54517938404202375102000 |
[1,63,2730,103950,3786615,137162025,5039703900, 189883593900,7381251402525,297032627967075, 12395985005353950,536910000482705850, 24139951470365605875,1126381171697414758125, 54517938404202375102000] |