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.

A007367 Numbers k such that phi(x) = k has exactly 3 solutions.

Table of values

n a(n)
1 2
2 44
3 56
4 92
5 104
6 116
7 140
8 164
9 204
10 212
11 260
12 296
13 332
14 344
15 356
16 380
17 392
18 444
19 452
20 476
21 524
22 536
23 564
24 584
25 588
26 620
27 632
28 684
29 692
30 716
31 744
32 764
33 776
34 836
35 860
36 884
37 932
38 956
39 980
40 1004
41 1016
42 1112
43 1124
44 1136
45 1172
46 1196
47 1284
48 1292
49 1304

List of values

[2, 44, 56, 92, 104, 116, 140, 164, 204, 212, 260, 296, 332, 344, 356, 380, 392, 444, 452, 476, 524, 536, 564, 584, 588, 620, 632, 684, 692, 716, 744, 764, 776, 836, 860, 884, 932, 956, 980, 1004, 1016, 1112, 1124, 1136, 1172, 1196, 1284, 1292, 1304]