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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.

A303747 Totients t for which gcd({x: phi(x)=t}) equals the largest prime factor of each member of {x: phi(x)=t}.

Table of values

n a(n)
1 10
2 22
3 28
4 30
5 44
6 46
7 52
8 56
9 58
10 66
11 70
12 78
13 82
14 92
15 102
16 104
17 106
18 116
19 126
20 130
21 136
22 138
23 140
24 148
25 150
26 164
27 166
28 172
29 178
30 184
31 190
32 196
33 198
34 204
35 208
36 210
37 212
38 222
39 226
40 228
41 238
42 250
43 260
44 262
45 268
46 270
47 282
48 292
49 296
50 306
51 310
52 316
53 328
54 330
55 332
56 344
57 346

List of values

[10, 22, 28, 30, 44, 46, 52, 56, 58, 66, 70, 78, 82, 92, 102, 104, 106, 116, 126, 130, 136, 138, 140, 148, 150, 164, 166, 172, 178, 184, 190, 196, 198, 204, 208, 210, 212, 222, 226, 228, 238, 250, 260, 262, 268, 270, 282, 292, 296, 306, 310, 316, 328, 330, 332, 344, 346]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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