n | a(n) |
---|---|
0 | 1 |
1 | -2 |
2 | 6 |
3 | -14 |
4 | 38 |
5 | -94 |
6 | 246 |
7 | -622 |
8 | 1606 |
9 | -4094 |
10 | 10518 |
11 | -26894 |
12 | 68966 |
13 | -176542 |
14 | 452406 |
15 | -1158574 |
16 | 2968198 |
17 | -7602494 |
18 | 19475286 |
19 | -49885262 |
20 | 127786406 |
21 | -327327454 |
22 | 838473078 |
23 | -2147782894 |
24 | 5501675206 |
25 | -14092806782 |
26 | 36099507606 |
27 | -92470734734 |
[1,-2,6,-14,38,-94,246,-622,1606,-4094,10518, -26894,68966,-176542,452406,-1158574,2968198, -7602494,19475286,-49885262,127786406,-327327454, 838473078,-2147782894,5501675206,-14092806782, 36099507606,-92470734734] |