n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 12 |
3 | 124 |
4 | 1800 |
5 | 33648 |
6 | 769336 |
7 | 20796960 |
8 | 648841680 |
9 | 22945907520 |
10 | 907036108432 |
11 | 39631833652320 |
12 | 1896696894062880 |
13 | 98669609894805600 |
14 | 5543804125505195040 |
15 | 334563594743197602272 |
16 | 21583554094995765302592 |
[1,2,12,124,1800,33648,769336,20796960,648841680, 22945907520,907036108432,39631833652320, 1896696894062880,98669609894805600, 5543804125505195040,334563594743197602272, 21583554094995765302592] |