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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.

A214606 a(n) = gcd(n, 2^n - 2).

Table of values

n a(n)
1 1
2 2
3 3
4 2
5 5
6 2
7 7
8 2
9 3
10 2
11 11
12 2
13 13
14 2
15 3
16 2
17 17
18 2
19 19
20 2
21 3
22 2
23 23
24 2
25 5
26 2
27 3
28 14
29 29
30 2
31 31
32 2
33 3
34 2
35 1
36 2
37 37
38 2
39 3
40 2
41 41
42 2
43 43
44 2
45 15
46 2
47 47
48 2
49 7
50 2
51 3
52 2
53 53
54 2
55 1
56 2
57 3
58 2
59 59
60 2
61 61
62 2
63 3
64 2
65 5
66 2
67 67
68 2
69 3
70 14
71 71
72 2
73 73
74 2
75 3
76 2
77 1
78 2
79 79

List of values

[1, 2, 3, 2, 5, 2, 7, 2, 3, 2, 11, 2, 13, 2, 3, 2, 17, 2, 19, 2, 3, 2, 23, 2, 5, 2, 3, 14, 29, 2, 31, 2, 3, 2, 1, 2, 37, 2, 3, 2, 41, 2, 43, 2, 15, 2, 47, 2, 7, 2, 3, 2, 53, 2, 1, 2, 3, 2, 59, 2, 61, 2, 3, 2, 5, 2, 67, 2, 3, 14, 71, 2, 73, 2, 3, 2, 1, 2, 79]

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