n | a(n) |
---|---|
2 | 0 |
3 | 0 |
4 | -7 |
5 | -35 |
6 | 295 |
7 | 2065 |
8 | -42980 |
9 | -42980 |
10 | 1426670 |
11 | 15693370 |
12 | -774856236 |
13 | -10073131068 |
14 | 692669409432 |
15 | 692669409432 |
16 | -63315621131763 |
17 | -1076365559239971 |
18 | 126262920264259779 |
19 | 2398995485020935801 |
20 | -351338708777824396629 |
21 | -351338708777824396629 |
[0,0,-7,-35,295,2065,-42980,-42980,1426670, 15693370,-774856236,-10073131068,692669409432, 692669409432,-63315621131763,-1076365559239971, 126262920264259779,2398995485020935801, -351338708777824396629,-351338708777824396629] |