n | a(n) |
---|---|
3 | 2 |
4 | 16 |
5 | 136 |
6 | 1232 |
7 | 12096 |
8 | 129024 |
9 | 1491840 |
10 | 18627840 |
11 | 250145280 |
12 | 3597834240 |
13 | 55212917760 |
14 | 900842342400 |
15 | 15575854694400 |
16 | 284549942476800 |
17 | 5477586392678400 |
18 | 110832202594713600 |
19 | 2351805274570752000 |
[2,16,136,1232,12096,129024,1491840,18627840, 250145280,3597834240,55212917760,900842342400, 15575854694400,284549942476800,5477586392678400, 110832202594713600,2351805274570752000] |