n | a(n) |
---|---|
1 | 1 |
2 | 3 |
3 | 15 |
4 | 105 |
5 | 315 |
6 | 3465 |
7 | 45045 |
8 | 45045 |
9 | 765765 |
10 | 14549535 |
11 | 14549535 |
12 | 334639305 |
13 | 1673196525 |
14 | 5019589575 |
15 | 145568097675 |
16 | 4512611027925 |
17 | 4512611027925 |
18 | 4512611027925 |
19 | 166966608033225 |
20 | 166966608033225 |
21 | 6845630929362225 |
22 | 294362129962575675 |
23 | 294362129962575675 |
[1,3,15,105,315,3465,45045,45045,765765,14549535, 14549535,334639305,1673196525,5019589575, 145568097675,4512611027925,4512611027925, 4512611027925,166966608033225,166966608033225, 6845630929362225,294362129962575675, 294362129962575675] |