n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 5 |
3 | 31 |
4 | 151 |
5 | 917 |
6 | 5619 |
7 | 33627 |
8 | 210911 |
9 | 1326395 |
10 | 8366161 |
11 | 53441835 |
12 | 342477957 |
13 | 2203613164 |
14 | 14248253995 |
15 | 92379163952 |
16 | 600644552471 |
17 | 3915699367751 |
18 | 25579440322831 |
19 | 167423682425912 |
20 | 1097738520430457 |
21 | 7208383257398805 |
[1,1,5,31,151,917,5619,33627,210911,1326395, 8366161,53441835,342477957,2203613164,14248253995, 92379163952,600644552471,3915699367751, 25579440322831,167423682425912,1097738520430457, 7208383257398805] |