n | a(n) |
---|---|
2 | 3 |
3 | 10 |
4 | 42 |
5 | 330 |
6 | 2730 |
7 | 39270 |
8 | 570570 |
9 | 11741730 |
10 | 281291010 |
11 | 6915878970 |
12 | 239378649510 |
13 | 8222980095330 |
14 | 319091739796830 |
15 | 14299762385778870 |
16 | 693386350578511590 |
17 | 36278497172720993190 |
18 | 1987938667108592728530 |
19 | 128824943460332246817690 |
20 | 8327475076517894939812170 |
21 | 573657473228859495079173570 |
[3,10,42,330,2730,39270,570570,11741730,281291010, 6915878970,239378649510,8222980095330, 319091739796830,14299762385778870, 693386350578511590,36278497172720993190, 1987938667108592728530,128824943460332246817690, 8327475076517894939812170, 573657473228859495079173570] |