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A152166 as a simple table

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]

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Last modified March 28 16:58 EDT 2024. Contains 371254 sequences. (Running on oeis4.)