n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 4 |
3 | 10 |
4 | 36 |
5 | 202 |
6 | 1828 |
7 | 27337 |
8 | 664665 |
9 | 23693265 |
10 | 1092226081 |
11 | 58686573121 |
12 | 3431048928385 |
13 | 209706732148993 |
14 | 13113096655221249 |
15 | 829504773400454145 |
16 | 52778852611947546625 |
17 | 3367976225848670392321 |
18 | 215235141069830389702657 |
19 | 13764966441742878856593409 |
[1,2,4,10,36,202,1828,27337,664665,23693265, 1092226081,58686573121,3431048928385, 209706732148993,13113096655221249, 829504773400454145,52778852611947546625, 3367976225848670392321,215235141069830389702657, 13764966441742878856593409] |