n | a(n) |
---|---|
1 | 5 |
2 | -10 |
3 | 40 |
4 | -160 |
5 | 624 |
6 | -2580 |
7 | 11160 |
8 | -48910 |
9 | 217000 |
10 | -976248 |
11 | 4438920 |
12 | -20346280 |
13 | 93900240 |
14 | -435959820 |
15 | 2034504992 |
16 | -9536767660 |
17 | 44878791360 |
18 | -211927516500 |
19 | 1003867701480 |
20 | -4768372069968 |
21 | 22706531339280 |
22 | -108372079190340 |
23 | 518301258916440 |
24 | -2483526875798780 |
[5,-10,40,-160,624,-2580,11160,-48910,217000, -976248,4438920,-20346280,93900240,-435959820, 2034504992,-9536767660,44878791360,-211927516500, 1003867701480,-4768372069968,22706531339280, -108372079190340,518301258916440, -2483526875798780] |