n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 6 |
4 | 28 |
5 | 216 |
6 | 2864 |
7 | 66656 |
8 | 2760896 |
9 | 205824384 |
10 | 27886535424 |
11 | 6924055315968 |
12 | 3173107641551872 |
13 | 2700294145104025600 |
14 | 4289542333320782426112 |
15 | 12777557344991526923034624 |
16 | 71652489091220599890081005568 |
[1,1,2,6,28,216,2864,66656,2760896,205824384, 27886535424,6924055315968,3173107641551872, 2700294145104025600,4289542333320782426112, 12777557344991526923034624, 71652489091220599890081005568] |