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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.

A336238 a(1) = 3; if n>1, and gcd(a(n-1), n) > 1 then a(n) = a(n-1)/gcd(a(n-1), n), otherwise a(n) = a(n-1) + n.

Table of values

n a(n)
1 3
2 5
3 8
4 2
5 7
6 13
7 20
8 5
9 14
10 7
11 18
12 3
13 16
14 8
15 23
16 39
17 56
18 28
19 47
20 67
21 88
22 4
23 27
24 9
25 34
26 17
27 44
28 11
29 40
30 4
31 35
32 67
33 100
34 50
35 10
36 5
37 42
38 21
39 7
40 47
41 88
42 44
43 87
44 131
45 176
46 88
47 135
48 45
49 94
50 47
51 98
52 49
53 102
54 17
55 72
56 9
57 3
58 61
59 120
60 2
61 63
62 125
63 188
64 47
65 112
66 56
67 123
68 191

List of values

[3, 5, 8, 2, 7, 13, 20, 5, 14, 7, 18, 3, 16, 8, 23, 39, 56, 28, 47, 67, 88, 4, 27, 9, 34, 17, 44, 11, 40, 4, 35, 67, 100, 50, 10, 5, 42, 21, 7, 47, 88, 44, 87, 131, 176, 88, 135, 45, 94, 47, 98, 49, 102, 17, 72, 9, 3, 61, 120, 2, 63, 125, 188, 47, 112, 56, 123, 191]

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