cp's OEIS Frontend

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.

A119018 a(1) = 1; a(n) is the smallest number not yet used that is not relatively prime to n nor relatively prime to a(n-1).

Table of values

n a(n)
1 1
2 2
3 6
4 4
5 10
6 8
7 14
8 12
9 3
10 15
11 33
12 9
13 39
14 18
15 20
16 16
17 34
18 22
19 38
20 24
21 21
22 28
23 46
24 26
25 30
26 32
27 36
28 40
29 58
30 42
31 62
32 44
33 11
34 66
35 45
36 27
37 111
38 48
39 51
40 54
41 82
42 50
43 86
44 52
45 60
46 56
47 94
48 64
49 70
50 5
51 75
52 65
53 265
54 80
55 25
56 35
57 63
58 72
59 118
60 68
61 122
62 74
63 78
64 76
65 90
66 55
67 335
68 85
69 102
70 84
71 142

List of values

[1, 2, 6, 4, 10, 8, 14, 12, 3, 15, 33, 9, 39, 18, 20, 16, 34, 22, 38, 24, 21, 28, 46, 26, 30, 32, 36, 40, 58, 42, 62, 44, 11, 66, 45, 27, 111, 48, 51, 54, 82, 50, 86, 52, 60, 56, 94, 64, 70, 5, 75, 65, 265, 80, 25, 35, 63, 72, 118, 68, 122, 74, 78, 76, 90, 55, 335, 85, 102, 84, 142]

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