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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A117973 a(n) = 2^(wt(n)+1), where wt() = A000120().

Table of values

n a(n)
0 2
1 4
2 4
3 8
4 4
5 8
6 8
7 16
8 4
9 8
10 8
11 16
12 8
13 16
14 16
15 32
16 4
17 8
18 8
19 16
20 8
21 16
22 16
23 32
24 8
25 16
26 16
27 32
28 16
29 32
30 32
31 64
32 4
33 8
34 8
35 16
36 8
37 16
38 16
39 32
40 8
41 16
42 16
43 32
44 16
45 32
46 32
47 64
48 8
49 16
50 16
51 32
52 16
53 32
54 32
55 64
56 16
57 32
58 32
59 64
60 32
61 64
62 64
63 128
64 4
65 8
66 8
67 16
68 8
69 16
70 16
71 32
72 8
73 16
74 16
75 32
76 16
77 32

List of values

[2, 4, 4, 8, 4, 8, 8, 16, 4, 8, 8, 16, 8, 16, 16, 32, 4, 8, 8, 16, 8, 16, 16, 32, 8, 16, 16, 32, 16, 32, 32, 64, 4, 8, 8, 16, 8, 16, 16, 32, 8, 16, 16, 32, 16, 32, 32, 64, 8, 16, 16, 32, 16, 32, 32, 64, 16, 32, 32, 64, 32, 64, 64, 128, 4, 8, 8, 16, 8, 16, 16, 32, 8, 16, 16, 32, 16, 32]

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