n | a(n) |
---|---|
1 | 5 |
2 | 10 |
3 | 10 |
4 | 55 |
5 | 102 |
6 | 430 |
7 | 1170 |
8 | 4435 |
9 | 14570 |
10 | 53764 |
11 | 190650 |
12 | 704370 |
13 | 2581110 |
14 | 9608050 |
15 | 35791470 |
16 | 134301715 |
17 | 505290270 |
18 | 1909209550 |
19 | 7233629130 |
20 | 27489127708 |
21 | 104715393910 |
22 | 399827748310 |
23 | 1529755308210 |
24 | 5864083338770 |
25 | 22517998136934 |
26 | 86607770318380 |
[5,10,10,55,102,430,1170,4435,14570,53764,190650, 704370,2581110,9608050,35791470,134301715, 505290270,1909209550,7233629130,27489127708, 104715393910,399827748310,1529755308210, 5864083338770,22517998136934,86607770318380] |