n | a(n) |
---|---|
0 | 1 |
1 | 6 |
2 | 30 |
3 | 420 |
4 | 1260 |
5 | 13860 |
6 | 180180 |
7 | 72072 |
8 | 1225224 |
9 | 116396280 |
10 | 116396280 |
11 | 2677114440 |
12 | 13385572200 |
13 | 5736673800 |
14 | 166363540200 |
15 | 10314539492400 |
16 | 10314539492400 |
17 | 72201776446800 |
18 | 2671465728531600 |
19 | 2671465728531600 |
[1,6,30,420,1260,13860,180180,72072,1225224, 116396280,116396280,2677114440,13385572200, 5736673800,166363540200,10314539492400, 10314539492400,72201776446800,2671465728531600, 2671465728531600] |