n | a(n) |
---|---|
1 | 0 |
2 | 1 |
3 | 2 |
4 | 3 |
5 | 7 |
6 | 25 |
7 | 126 |
8 | 968 |
9 | 11752 |
10 | 240615 |
11 | 8529544 |
12 | 534168034 |
13 | 59794030430 |
14 | 12082250628276 |
15 | 4446033336286696 |
16 | 3002923486915259644 |
17 | 3748228681583390913192 |
18 | 8696890616699403375722774 |
19 | 37700601714008218904828607832 |
20 | 306674623374061557486512987705844 |
[0,1,2,3,7,25,126,968,11752,240615,8529544, 534168034,59794030430,12082250628276, 4446033336286696,3002923486915259644, 3748228681583390913192,8696890616699403375722774, 37700601714008218904828607832, 306674623374061557486512987705844] |