n | a(n) |
---|---|
1 | 5 |
2 | 23 |
3 | 111 |
4 | 517 |
5 | 2529 |
6 | 12497 |
7 | 60773 |
8 | 293467 |
9 | 1452027 |
10 | 7098491 |
11 | 35241785 |
12 | 173448115 |
13 | 850635919 |
14 | 4228509605 |
15 | 20877802955 |
16 | 102809521997 |
17 | 511702568833 |
18 | 2533299689123 |
19 | 12515437416587 |
20 | 61741060077517 |
21 | 307496253699899 |
[5,23,111,517,2529,12497,60773,293467,1452027, 7098491,35241785,173448115,850635919,4228509605, 20877802955,102809521997,511702568833, 2533299689123,12515437416587,61741060077517, 307496253699899] |