n | a(n) |
---|---|
0 | 1 |
1 | -2 |
2 | 2 |
3 | -4 |
4 | 4 |
5 | -8 |
6 | 8 |
7 | -16 |
8 | 16 |
9 | -32 |
10 | 32 |
11 | -64 |
12 | 64 |
13 | -128 |
14 | 128 |
15 | -256 |
16 | 256 |
17 | -512 |
18 | 512 |
19 | -1024 |
20 | 1024 |
21 | -2048 |
22 | 2048 |
23 | -4096 |
24 | 4096 |
25 | -8192 |
26 | 8192 |
27 | -16384 |
28 | 16384 |
29 | -32768 |
30 | 32768 |
31 | -65536 |
32 | 65536 |
33 | -131072 |
34 | 131072 |
35 | -262144 |
36 | 262144 |
37 | -524288 |
38 | 524288 |
39 | -1048576 |
40 | 1048576 |
[1,-2,2,-4,4,-8,8,-16,16,-32,32,-64,64,-128,128, -256,256,-512,512,-1024,1024,-2048,2048,-4096, 4096,-8192,8192,-16384,16384,-32768,32768,-65536, 65536,-131072,131072,-262144,262144,-524288, 524288,-1048576,1048576] |