n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 6 |
3 | 28 |
4 | 210 |
5 | 2604 |
6 | 54684 |
7 | 1984248 |
8 | 126495810 |
9 | 14364301980 |
10 | 2938936185108 |
11 | 1093818612893832 |
12 | 746531203300040340 |
13 | 940744167112404680760 |
14 | 2201744527114646554984440 |
15 | 9619275055995416488956686064 |
16 | 78799898849332452450472052650530 |
[1,2,6,28,210,2604,54684,1984248,126495810, 14364301980,2938936185108,1093818612893832, 746531203300040340,940744167112404680760, 2201744527114646554984440, 9619275055995416488956686064, 78799898849332452450472052650530] |