n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | -1 |
3 | 0 |
4 | -1 |
5 | 0 |
6 | -1 |
7 | 1 |
8 | -8 |
9 | 54 |
10 | -530 |
11 | 6192 |
12 | -86581 |
13 | 1425517 |
14 | -27298232 |
15 | 601580873 |
16 | -15116315768 |
17 | 429614643061 |
18 | -13711655205089 |
19 | 488332318973593 |
20 | -19296579341940069 |
21 | 841693047573682615 |
22 | -40338071854059455414 |
23 | 2115074863808199160560 |
24 | -120866265222965259346028 |
[1,0,-1,0,-1,0,-1,1,-8,54,-530,6192,-86581, 1425517,-27298232,601580873,-15116315768, 429614643061,-13711655205089,488332318973593, -19296579341940069,841693047573682615, -40338071854059455414,2115074863808199160560, -120866265222965259346028] |