n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 11 |
3 | 52 |
4 | 301 |
5 | 2055 |
6 | 16139 |
7 | 143196 |
8 | 1415821 |
9 | 15430835 |
10 | 183754199 |
11 | 2373373752 |
12 | 33043478329 |
13 | 493278801183 |
14 | 7859417340599 |
15 | 133116815989000 |
16 | 2388243270461401 |
17 | 45243505322777619 |
18 | 902481863185090979 |
[1,3,11,52,301,2055,16139,143196,1415821,15430835, 183754199,2373373752,33043478329,493278801183, 7859417340599,133116815989000,2388243270461401, 45243505322777619,902481863185090979] |