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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.

A171421 Euler totient function of the n-th single or isolated number.

Table of values

n a(n)
1 1
2 2
3 2
4 4
5 6
6 22
7 8
8 36
9 12
10 46
11 52
12 16
13 66
14 24
15 78
16 82
17 88
18 96
19 32
20 36
21 112
22 126
23 130
24 44
25 40
26 156
27 162
28 166
29 172
30 48
31 64
32 60
33 210
34 222
35 72
36 232
37 64
38 250
39 256
40 262
41 72
42 276
43 92
44 292
45 306
46 96
47 316
48 330
49 336
50 112
51 352
52 358
53 366
54 372
55 378
56 382
57 388
58 396
59 400
60 408

List of values

[1, 2, 2, 4, 6, 22, 8, 36, 12, 46, 52, 16, 66, 24, 78, 82, 88, 96, 32, 36, 112, 126, 130, 44, 40, 156, 162, 166, 172, 48, 64, 60, 210, 222, 72, 232, 64, 250, 256, 262, 72, 276, 92, 292, 306, 96, 316, 330, 336, 112, 352, 358, 366, 372, 378, 382, 388, 396, 400, 408]