n | a(n) |
---|---|
1 | 1 |
2 | 4 |
3 | 8 |
4 | 88 |
5 | 252 |
6 | 2112 |
7 | 2112 |
8 | 2112 |
9 | 4224 |
10 | 8448 |
11 | 48384 |
12 | 48384 |
13 | 405504 |
14 | 405504 |
15 | 405504 |
16 | 40955904 |
17 | 677707776 |
18 | 677707776 |
19 | 677707776 |
20 | 677707776 |
[1,4,8,88,252,2112,2112,2112,4224,8448,48384, 48384,405504,405504,405504,40955904,677707776, 677707776,677707776,677707776] |