n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | -4 |
3 | -14 |
4 | -4 |
5 | 76 |
6 | 176 |
7 | -104 |
8 | -1264 |
9 | -1904 |
10 | 3776 |
11 | 18976 |
12 | 15296 |
13 | -83264 |
14 | -258304 |
15 | -17024 |
16 | 1515776 |
17 | 3133696 |
18 | -2827264 |
19 | -24456704 |
20 | -31949824 |
21 | 82840576 |
22 | 357380096 |
23 | 217716736 |
24 | -1708847104 |
25 | -4723994624 |
26 | 805093376 |
[1,1,-4,-14,-4,76,176,-104,-1264,-1904,3776,18976, 15296,-83264,-258304,-17024,1515776,3133696, -2827264,-24456704,-31949824,82840576,357380096, 217716736,-1708847104,-4723994624,805093376] |