n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 5 |
4 | 140 |
5 | 35 |
6 | 770 |
7 | 5005 |
8 | 40040 |
9 | 510510 |
10 | 646646 |
11 | 323323 |
12 | 29745716 |
13 | 14300825 |
14 | 12257850 |
15 | 59246275 |
16 | 29386152400 |
17 | 7346538100 |
18 | 77138650050 |
19 | 475688341975 |
20 | 24735793782700 |
21 | 253541886272675 |
22 | 21804602219450050 |
23 | 10902301109725025 |
[1,2,5,140,35,770,5005,40040,510510,646646,323323, 29745716,14300825,12257850,59246275,29386152400, 7346538100,77138650050,475688341975, 24735793782700,253541886272675,21804602219450050, 10902301109725025] |