n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 11 |
4 | 53 |
5 | 297 |
6 | 1959 |
7 | 14499 |
8 | 120409 |
9 | 1097025 |
10 | 10931771 |
11 | 117685163 |
12 | 1363889133 |
13 | 16887554569 |
14 | 222672557631 |
15 | 3110742121059 |
16 | 45912214062961 |
17 | 713290136581697 |
18 | 11636755988405555 |
19 | 198800967493444875 |
20 | 3549276499518132325 |
21 | 66076184834921382313 |
22 | 1280502976522048458647 |
[1,1,3,11,53,297,1959,14499,120409,1097025, 10931771,117685163,1363889133,16887554569, 222672557631,3110742121059,45912214062961, 713290136581697,11636755988405555, 198800967493444875,3549276499518132325, 66076184834921382313,1280502976522048458647] |