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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.

A347309 a(n) = gcd(b(n-1)+1, b(n)), where b is A347113.

Table of values

n a(n)
2 2
3 5
4 11
5 23
6 47
7 5
8 2
9 3
10 7
11 3
12 4
13 3
14 13
15 9
16 5
17 2
18 19
19 13
20 7
21 8
22 17
23 5
24 3
25 5
26 31
27 21
28 11
29 3
30 4
31 3
32 37
33 25
34 2
35 29
36 59
37 17
38 3
39 2
40 41
41 83
42 167
43 5
44 3
45 2
46 43
47 29
48 2
49 3
50 7
51 19
52 5
53 23
54 2
55 3
56 5
57 61
58 41
59 7
60 2
61 53
62 107
63 43
64 11
65 7
66 2
67 67
68 3
69 4
70 5
71 71
72 13
73 3
74 2
75 3
76 73
77 3
78 5
79 2
80 79
81 53
82 2
83 7

List of values

[2, 5, 11, 23, 47, 5, 2, 3, 7, 3, 4, 3, 13, 9, 5, 2, 19, 13, 7, 8, 17, 5, 3, 5, 31, 21, 11, 3, 4, 3, 37, 25, 2, 29, 59, 17, 3, 2, 41, 83, 167, 5, 3, 2, 43, 29, 2, 3, 7, 19, 5, 23, 2, 3, 5, 61, 41, 7, 2, 53, 107, 43, 11, 7, 2, 67, 3, 4, 5, 71, 13, 3, 2, 3, 73, 3, 5, 2, 79, 53, 2, 7]

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