n | a(n) |
---|---|
3 | 1 |
4 | 10 |
5 | 73 |
6 | 425 |
7 | 1561 |
8 | -2856 |
9 | -73520 |
10 | 380160 |
11 | 15376416 |
12 | -117209664 |
13 | -7506967104 |
14 | 72162155520 |
15 | 7045087741056 |
16 | -80246202992640 |
17 | -11448278791372800 |
18 | 149576169325363200 |
19 | 30017051616972275712 |
20 | -440857664887810867200 |
[1,10,73,425,1561,-2856,-73520,380160,15376416, -117209664,-7506967104,72162155520,7045087741056, -80246202992640,-11448278791372800, 149576169325363200,30017051616972275712, -440857664887810867200] |