n | a(n) |
---|---|
1 | 1 |
2 | 3 |
3 | 15 |
4 | 105 |
5 | 189 |
6 | 10395 |
7 | 135135 |
8 | 2027025 |
9 | 34459425 |
10 | 130945815 |
11 | 13749310575 |
12 | 316234143225 |
13 | 7905853580625 |
14 | 12556355686875 |
15 | 1238056670725875 |
16 | 776918153694375 |
17 | 6332659870762850625 |
18 | 7642865361265509375 |
19 | 8200794532637891559375 |
20 | 63966197354575554163125 |
21 | 13113070457687988603440625 |
[1,3,15,105,189,10395,135135,2027025,34459425, 130945815,13749310575,316234143225,7905853580625, 12556355686875,1238056670725875,776918153694375, 6332659870762850625,7642865361265509375, 8200794532637891559375,63966197354575554163125, 13113070457687988603440625] |