n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 2 |
3 | 12 |
4 | 28 |
5 | 440 |
6 | 2456 |
7 | 98448 |
8 | 1327632 |
9 | 134302752 |
10 | 4398726432 |
11 | 1116577758912 |
12 | 89104889764288 |
13 | 56558827752672128 |
14 | 11021135122877392256 |
15 | 17451895365397015875840 |
16 | 8316834448188073547563264 |
17 | 32799202036840274283669160448 |
18 | 38271513084756431661704424923648 |
[1,2,2,12,28,440,2456,98448,1327632,134302752, 4398726432,1116577758912,89104889764288, 56558827752672128,11021135122877392256, 17451895365397015875840,8316834448188073547563264, 32799202036840274283669160448, 38271513084756431661704424923648] |