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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.

A342008 Numbers k such that Euler totient phi(k) is a multiple of the arithmetic derivative of k.

Table of values

n a(n)
1 2
2 3
3 5
4 7
5 9
6 11
7 13
8 15
9 17
10 19
11 23
12 25
13 29
14 31
15 35
16 37
17 41
18 43
19 47
20 49
21 53
22 59
23 61
24 67
25 71
26 73
27 79
28 83
29 89
30 95
31 97
32 101
33 103
34 107
35 109
36 113
37 119
38 121
39 127
40 131
41 137
42 139
43 143
44 149
45 151
46 157
47 163
48 167
49 169
50 173
51 179
52 181
53 191
54 193
55 197
56 199
57 209
58 211
59 223
60 227
61 229
62 233
63 239
64 241
65 251
66 257
67 263
68 269
69 271
70 277
71 281

List of values

[2, 3, 5, 7, 9, 11, 13, 15, 17, 19, 23, 25, 29, 31, 35, 37, 41, 43, 47, 49, 53, 59, 61, 67, 71, 73, 79, 83, 89, 95, 97, 101, 103, 107, 109, 113, 119, 121, 127, 131, 137, 139, 143, 149, 151, 157, 163, 167, 169, 173, 179, 181, 191, 193, 197, 199, 209, 211, 223, 227, 229, 233, 239, 241, 251, 257, 263, 269, 271, 277, 281]