n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | -1 |
3 | -1 |
4 | -5 |
5 | -9 |
6 | -21 |
7 | -41 |
8 | -85 |
9 | -169 |
10 | -341 |
11 | -681 |
12 | -1365 |
13 | -2729 |
14 | -5461 |
15 | -10921 |
16 | -21845 |
17 | -43689 |
18 | -87381 |
19 | -174761 |
20 | -349525 |
21 | -699049 |
22 | -1398101 |
23 | -2796201 |
24 | -5592405 |
25 | -11184809 |
26 | -22369621 |
27 | -44739241 |
28 | -89478485 |
29 | -178956969 |
30 | -357913941 |
31 | -715827881 |
32 | -1431655765 |
[0,1,-1,-1,-5,-9,-21,-41,-85,-169,-341,-681,-1365, -2729,-5461,-10921,-21845,-43689,-87381,-174761, -349525,-699049,-1398101,-2796201,-5592405, -11184809,-22369621,-44739241,-89478485, -178956969,-357913941,-715827881,-1431655765] |