n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 3 |
3 | 6 |
4 | 16 |
5 | 48 |
6 | 180 |
7 | 720 |
8 | 3456 |
9 | 17280 |
10 | 100800 |
11 | 604800 |
12 | 4147200 |
13 | 29030400 |
14 | 228614400 |
15 | 1828915200 |
16 | 16257024000 |
17 | 146313216000 |
18 | 1448500838400 |
19 | 14485008384000 |
20 | 158018273280000 |
21 | 1738201006080000 |
22 | 20713561989120000 |
23 | 248562743869440000 |
24 | 3212195459235840000 |
[1,2,3,6,16,48,180,720,3456,17280,100800,604800, 4147200,29030400,228614400,1828915200,16257024000, 146313216000,1448500838400,14485008384000, 158018273280000,1738201006080000, 20713561989120000,248562743869440000, 3212195459235840000] |