n | a(n) |
---|---|
1 | 1 |
2 | -1 |
3 | 5 |
4 | -35 |
5 | 204 |
6 | -1294 |
7 | 16862 |
8 | -225266 |
9 | 2346712 |
10 | -31689336 |
11 | 558727872 |
12 | -9891952608 |
13 | 185546362416 |
14 | -3668674300992 |
15 | 83728926109488 |
16 | -2078005263610704 |
17 | 50908186083448320 |
18 | -1343594571773137536 |
19 | 38998680958184088960 |
20 | -1181298578244977897856 |
21 | 37029733866954589964544 |
[1,-1,5,-35,204,-1294,16862,-225266,2346712, -31689336,558727872,-9891952608,185546362416, -3668674300992,83728926109488,-2078005263610704, 50908186083448320,-1343594571773137536, 38998680958184088960,-1181298578244977897856, 37029733866954589964544] |