n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | -1 |
3 | 3 |
4 | -1 |
5 | -1 |
6 | 7 |
7 | -9 |
8 | 7 |
9 | 7 |
10 | -25 |
11 | 39 |
12 | -25 |
13 | -25 |
14 | 103 |
15 | -153 |
16 | 103 |
17 | 103 |
18 | -409 |
19 | 615 |
20 | -409 |
21 | -409 |
22 | 1639 |
23 | -2457 |
24 | 1639 |
25 | 1639 |
26 | -6553 |
27 | 9831 |
28 | -6553 |
29 | -6553 |
30 | 26215 |
31 | -39321 |
32 | 26215 |
33 | 26215 |
34 | -104857 |
35 | 157287 |
36 | -104857 |
37 | -104857 |
38 | 419431 |
[1,1,-1,3,-1,-1,7,-9,7,7,-25,39,-25,-25,103,-153, 103,103,-409,615,-409,-409,1639,-2457,1639,1639, -6553,9831,-6553,-6553,26215,-39321,26215,26215, -104857,157287,-104857,-104857,419431] |