n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 2 |
4 | 24 |
5 | 30 |
6 | 180 |
7 | 70 |
8 | 1120 |
9 | 840 |
10 | 8400 |
11 | 630 |
12 | 83160 |
13 | 72072 |
14 | 1009008 |
15 | 1081080 |
16 | 192192 |
17 | 408408 |
18 | 7351344 |
19 | 2217072 |
20 | 8868288 |
21 | 203693490 |
22 | 71131060 |
23 | 74364290 |
24 | 4759314560 |
25 | 14872858000 |
26 | 77338861600 |
27 | 72282089880 |
[1,2,2,24,30,180,70,1120,840,8400,630,83160,72072, 1009008,1081080,192192,408408,7351344,2217072, 8868288,203693490,71131060,74364290,4759314560, 14872858000,77338861600,72282089880] |