n | a(n) |
---|---|
4 | 4 |
5 | 140 |
6 | 3000 |
7 | 54600 |
8 | 940800 |
9 | 16087680 |
10 | 279417600 |
11 | 4989600000 |
12 | 92207808000 |
13 | 1769511744000 |
14 | 35321737651200 |
15 | 733823266176000 |
16 | 15866448998400000 |
17 | 356873052856320000 |
18 | 8344427063132160000 |
19 | 202660737281114112000 |
[4,140,3000,54600,940800,16087680,279417600, 4989600000,92207808000,1769511744000, 35321737651200,733823266176000,15866448998400000, 356873052856320000,8344427063132160000, 202660737281114112000] |