n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 12 |
4 | 72 |
5 | 2160 |
6 | 43200 |
7 | 6048000 |
8 | 423360000 |
9 | 266716800000 |
10 | 67212633600000 |
11 | 186313420339200000 |
12 | 172153600393420800000 |
13 | 2067909047925770649600000 |
14 | 7097063852481244869427200000 |
[1,1,2,12,72,2160,43200,6048000,423360000, 266716800000,67212633600000,186313420339200000, 172153600393420800000,2067909047925770649600000, 7097063852481244869427200000] |