n | a(n) |
---|---|
0 | 1 |
1 | 11 |
2 | 70 |
3 | 348 |
4 | 1449 |
5 | 5334 |
6 | 17822 |
7 | 55165 |
8 | 160215 |
9 | 441105 |
10 | 1159752 |
11 | 2929465 |
12 | 7142275 |
13 | 16873472 |
14 | 38749850 |
15 | 86737678 |
16 | 189672868 |
17 | 405991500 |
18 | 852077072 |
19 | 1756048833 |
20 | 3558408287 |
21 | 7098041203 |
22 | 13951818365 |
23 | 27047831797 |
24 | 51760979985 |
[1,11,70,348,1449,5334,17822,55165,160215,441105, 1159752,2929465,7142275,16873472,38749850, 86737678,189672868,405991500,852077072,1756048833, 3558408287,7098041203,13951818365,27047831797, 51760979985] |