n | a(n) |
---|---|
1 | 5 |
2 | 15 |
3 | 35 |
4 | 120 |
5 | 377 |
6 | 1505 |
7 | 5895 |
8 | 25395 |
9 | 110085 |
10 | 493131 |
11 | 2227275 |
12 | 10196680 |
13 | 46989185 |
14 | 218102685 |
15 | 1017448143 |
16 | 4768969770 |
17 | 22440372245 |
18 | 105966797755 |
19 | 501938733555 |
20 | 2384200683816 |
21 | 11353290089305 |
[5,15,35,120,377,1505,5895,25395,110085,493131, 2227275,10196680,46989185,218102685,1017448143, 4768969770,22440372245,105966797755,501938733555, 2384200683816,11353290089305] |