n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 5 |
3 | 20 |
4 | 350 |
5 | 140 |
6 | 1050 |
7 | 300 |
8 | 57750 |
9 | 38500 |
10 | 250250 |
11 | 45500 |
12 | 2388750 |
13 | 367500 |
14 | 318750 |
15 | 42500 |
16 | 1088106250 |
17 | 128012500 |
18 | 960093750 |
19 | 101062500 |
20 | 105761906250 |
21 | 10072562500 |
22 | 2289218750 |
23 | 199062500 |
24 | 8842968750 |
25 | 707437500 |
26 | 51289218750 |
[1,2,5,20,350,140,1050,300,57750,38500,250250, 45500,2388750,367500,318750,42500,1088106250, 128012500,960093750,101062500,105761906250, 10072562500,2289218750,199062500,8842968750, 707437500,51289218750] |