n | a(n) |
---|---|
1 | 1 |
2 | 6 |
3 | 66 |
4 | 300 |
5 | 8220 |
6 | 980 |
7 | 50820 |
8 | 213080 |
9 | 17965080 |
10 | 18600120 |
11 | 2320468920 |
12 | 2384502120 |
13 | 412970037480 |
14 | 422245703880 |
15 | 430902992520 |
16 | 1756076802480 |
17 | 516336630329520 |
18 | 58297387228080 |
19 | 21362271268818480 |
20 | 866533600973040 |
21 | 97555876321904 |
22 | 98772315738096 |
23 | 52866073370045936 |
24 | 481103506052529360 |
[1,6,66,300,8220,980,50820,213080,17965080, 18600120,2320468920,2384502120,412970037480, 422245703880,430902992520,1756076802480, 516336630329520,58297387228080,21362271268818480, 866533600973040,97555876321904,98772315738096, 52866073370045936,481103506052529360] |