n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 2 |
4 | 5 |
5 | 13 |
6 | 38 |
7 | 58 |
8 | 191 |
9 | 655 |
10 | 2374 |
11 | 4462 |
12 | 17519 |
13 | 71063 |
14 | 298810 |
15 | 646846 |
16 | 2887921 |
17 | 13237457 |
18 | 62332114 |
19 | 150303170 |
20 | 742458253 |
21 | 3748521653 |
22 | 19340144966 |
23 | 50903810666 |
24 | 273315477775 |
25 | 1495006933759 |
26 | 8327893878134 |
27 | 23599037077934 |
[1,1,2,2,5,13,38,58,191,655,2374,4462,17519,71063, 298810,646846,2887921,13237457,62332114,150303170, 742458253,3748521653,19340144966,50903810666, 273315477775,1495006933759,8327893878134, 23599037077934] |