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A143446 as a simple table

n a(n)
1 1
2 0
3 2
4 -1
5 2
6 4
7 -1
8 0
9 4
10 8
11 -2
12 0
13 4
14 8
15 16
16 -1
17 -2
18 0
19 8
20 16
21 32
22 -2
23 -2
24 0
25 8
26 16
27 32
28 64
29 -2
30 -2
31 0
32 0
33 16
34 32
35 64
36 128
37 -1
38 -2
39 -4
40 0
41 16
42 32
43 64
44 128
45 256
46 -1
47 -4
48 -4
49 0
50 0
51 32
52 64
53 128
54 256
55 512

[1,0,2,-1,2,4,-1,0,4,8,-2,0,4,8,16,-1,-2,0,8,16,
 32,-2,-2,0,8,16,32,64,-2,-2,0,0,16,32,64,128,-1,
 -2,-4,0,16,32,64,128,256,-1,-4,-4,0,0,32,64,128,
 256,512]

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Last modified May 12 15:33 EDT 2021. Contains 343825 sequences. (Running on oeis4.)