n | a(n) |
---|---|
2 | 1 |
3 | 2 |
4 | 5 |
5 | 14 |
6 | 42 |
7 | 132 |
8 | 430 |
9 | 1442 |
10 | 4956 |
11 | 17400 |
12 | 62251 |
13 | 226506 |
14 | 836911 |
15 | 3136182 |
16 | 11906908 |
17 | 45761338 |
18 | 177903128 |
19 | 699167112 |
20 | 2776219871 |
21 | 11132523840 |
22 | 45062497156 |
23 | 184057276510 |
24 | 758328417263 |
25 | 3150593560374 |
26 | 13195743501195 |
[1,2,5,14,42,132,430,1442,4956,17400,62251,226506, 836911,3136182,11906908,45761338,177903128, 699167112,2776219871,11132523840,45062497156, 184057276510,758328417263,3150593560374, 13195743501195] |