n | a(n) |
---|---|
5 | 2 |
6 | 12 |
7 | 30 |
8 | 240 |
9 | 720 |
10 | 60480 |
11 | 60480 |
12 | 7983360 |
13 | 1108800 |
14 | 518918400 |
15 | 21794572800 |
16 | 62270208000 |
17 | 87178291200 |
18 | 35568742809600 |
19 | 2 |
20 | 40548366802944000 |
21 | 304112751022080000 |
22 | 851515702861824000 |
23 | 2534272925184000 |
24 | 5170403347776995328000 |
25 | 51704033477769953280000 |
[2,12,30,240,720,60480,60480,7983360,1108800, 518918400,21794572800,62270208000,87178291200, 35568742809600,2,40548366802944000, 304112751022080000,851515702861824000, 2534272925184000,5170403347776995328000, 51704033477769953280000] |