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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.

A241195 Denominator of phi(prime(n)-1)/(prime(n)-1), where phi is Euler's totient function and prime(n) is the n-th prime.

Table of values

n a(n)
1 1
2 2
3 2
4 3
5 5
6 3
7 2
8 3
9 11
10 7
11 15
12 3
13 5
14 7
15 23
16 13
17 29
18 15
19 33
20 35
21 3
22 13
23 41
24 11
25 3
26 5
27 51
28 53
29 3
30 7
31 7
32 65
33 17
34 69
35 37
36 15
37 13
38 3
39 83
40 43
41 89
42 15
43 95
44 3
45 7
46 33
47 35
48 37
49 113
50 19
51 29
52 119
53 15
54 5
55 2
56 131
57 67
58 15
59 69
60 35
61 141
62 73
63 51
64 31
65 13
66 79
67 33
68 7
69 173
70 87
71 11

List of values

[1, 2, 2, 3, 5, 3, 2, 3, 11, 7, 15, 3, 5, 7, 23, 13, 29, 15, 33, 35, 3, 13, 41, 11, 3, 5, 51, 53, 3, 7, 7, 65, 17, 69, 37, 15, 13, 3, 83, 43, 89, 15, 95, 3, 7, 33, 35, 37, 113, 19, 29, 119, 15, 5, 2, 131, 67, 15, 69, 35, 141, 73, 51, 31, 13, 79, 33, 7, 173, 87, 11]

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