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