n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 24 |
3 | 30 |
4 | 56 |
5 | 2160 |
6 | 3960 |
7 | 10192 |
8 | 518400 |
9 | 1211760 |
10 | 3872960 |
11 | 239500800 |
12 | 668891520 |
13 | 2517424000 |
14 | 181062604800 |
15 | 581935622400 |
16 | 2497284608000 |
17 | 203152242585600 |
18 | 733238884224000 |
19 | 3511182158848000 |
20 | 316917498433536000 |
21 | 1262637358633728000 |
22 | 6643156644540416000 |
[1,1,24,30,56,2160,3960,10192,518400,1211760, 3872960,239500800,668891520,2517424000, 181062604800,581935622400,2497284608000, 203152242585600,733238884224000,3511182158848000, 316917498433536000,1262637358633728000, 6643156644540416000] |