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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.

A377499 a(n) is the median of the divisors of 2n-1.

Table of values

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

List of values

[1, 2, 3, 4, 3, 6, 7, 4, 9, 10, 5, 12, 5, 6, 15, 16, 7, 6, 19, 8, 21, 22, 7, 24, 7, 10, 27, 8, 11, 30, 31, 8, 9, 34, 13, 36, 37, 10, 9, 40, 9, 42, 11, 16, 45, 10, 17, 12, 49, 10, 51, 52, 11, 54, 55, 20, 57, 14, 11, 12, 11, 22, 15, 64, 23, 66, 13, 12, 69, 70, 25, 12, 17, 14, 75, 76]

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