n | a(n) |
---|---|
1 | 0 |
2 | 1 |
3 | -2 |
4 | 4 |
5 | -8 |
6 | 16 |
7 | -32 |
8 | 64 |
9 | -128 |
10 | 256 |
11 | -512 |
12 | 1024 |
13 | -2048 |
14 | 4096 |
15 | -8192 |
16 | 16384 |
17 | -32768 |
18 | 65536 |
19 | -131072 |
20 | 262144 |
21 | -524288 |
22 | 1048576 |
23 | -2097151 |
24 | 4194280 |
25 | -8388307 |
26 | 16774590 |
27 | -33536530 |
28 | 67007280 |
29 | -133718550 |
30 | 266253060 |
31 | -528213975 |
32 | 1042120800 |
33 | -2039889435 |
[0,1,-2,4,-8,16,-32,64,-128,256,-512,1024,-2048, 4096,-8192,16384,-32768,65536,-131072,262144, -524288,1048576,-2097151,4194280,-8388307, 16774590,-33536530,67007280,-133718550,266253060, -528213975,1042120800,-2039889435] |