n | a(n) |
---|---|
1 | 3 |
2 | 15 |
3 | 120 |
4 | 1080 |
5 | 14040 |
6 | 196560 |
7 | 3931200 |
8 | 82555200 |
9 | 1981324800 |
10 | 49533120000 |
11 | 1585059840000 |
12 | 52306974720000 |
13 | 1778437140480000 |
14 | 65802174197760000 |
15 | 2500482619514880000 |
16 | 112521717878169600000 |
17 | 5401042458152140800000 |
[3,15,120,1080,14040,196560,3931200,82555200, 1981324800,49533120000,1585059840000, 52306974720000,1778437140480000,65802174197760000, 2500482619514880000,112521717878169600000, 5401042458152140800000] |