n | a(n) |
---|---|
4 | 1 |
5 | 48 |
6 | 1728 |
7 | 62720 |
8 | 2457600 |
9 | 105815808 |
10 | 5017600000 |
11 | 261227298816 |
12 | 14860167413760 |
13 | 918839084134400 |
14 | 61439672177393700 |
15 | 4421589120000000000 |
16 | 340976534987475000000 |
17 | 28064307240230900000000 |
18 | 2456376885785930000000000 |
[1,48,1728,62720,2457600,105815808,5017600000, 261227298816,14860167413760,918839084134400, 61439672177393700,4421589120000000000, 340976534987475000000,28064307240230900000000, 2456376885785930000000000] |