n | a(n) |
---|---|
1 | 1 |
2 | 3 |
3 | 45 |
4 | 315 |
5 | 1575 |
6 | 51975 |
7 | 4729725 |
8 | 4729725 |
9 | 18555075 |
10 | 4583103525 |
11 | 50414138775 |
12 | 1159525191825 |
13 | 793359341775 |
14 | 15073827493725 |
15 | 2185704986590125 |
16 | 67756854584293875 |
17 | 1151866527932995875 |
18 | 3455599583798987625 |
19 | 2429286507410688300375 |
20 | 2429286507410688300375 |
[1,3,45,315,1575,51975,4729725,4729725,18555075, 4583103525,50414138775,1159525191825,793359341775, 15073827493725,2185704986590125,67756854584293875, 1151866527932995875,3455599583798987625, 2429286507410688300375,2429286507410688300375] |