n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 5 |
4 | 17 |
5 | 67 |
6 | 362 |
7 | 2039 |
8 | 14170 |
9 | 109694 |
10 | 976412 |
11 | 8921002 |
12 | 101134244 |
13 | 1104940280 |
14 | 13914013024 |
15 | 191754490412 |
16 | 2824047042632 |
17 | 41304021782824 |
18 | 708492417746000 |
19 | 11629404776897384 |
20 | 222093818836736752 |
21 | 4351196253952132832 |
22 | 88481681599705382144 |
23 | 1781763397966126421200 |
[1,2,5,17,67,362,2039,14170,109694,976412,8921002, 101134244,1104940280,13914013024,191754490412, 2824047042632,41304021782824,708492417746000, 11629404776897384,222093818836736752, 4351196253952132832,88481681599705382144, 1781763397966126421200] |