n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 6 |
4 | 24 |
5 | 120 |
6 | 696 |
7 | 4572 |
8 | 34260 |
9 | 290328 |
10 | 2751480 |
11 | 28426056 |
12 | 318900264 |
13 | 3874868280 |
14 | 50813711808 |
15 | 716309557440 |
16 | 10721493269568 |
[1,2,6,24,120,696,4572,34260,290328,2751480, 28426056,318900264,3874868280,50813711808, 716309557440,10721493269568] |