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.

A211185 Numbers whose number of proper divisors equals the number of their anti-divisors.

Table of values

n a(n)
1 1
2 3
3 9
4 10
5 14
6 15
7 21
8 26
9 28
10 34
11 51
12 69
13 75
14 76
15 88
16 92
17 99
18 102
19 104
20 106
21 110
22 124
23 134
24 135
25 136
26 138
27 141
28 146
29 164
30 170
31 231
32 232
33 236
34 256
35 258
36 261
37 268
38 285
39 290
40 309
41 321
42 328
43 386
44 394
45 405
46 411
47 424
48 429
49 441
50 484
51 490
52 525
53 531
54 574
55 580
56 590
57 602
58 608
59 614
60 615
61 620
62 628
63 639
64 645
65 651
66 656
67 658

List of values

[1, 3, 9, 10, 14, 15, 21, 26, 28, 34, 51, 69, 75, 76, 88, 92, 99, 102, 104, 106, 110, 124, 134, 135, 136, 138, 141, 146, 164, 170, 231, 232, 236, 256, 258, 261, 268, 285, 290, 309, 321, 328, 386, 394, 405, 411, 424, 429, 441, 484, 490, 525, 531, 574, 580, 590, 602, 608, 614, 615, 620, 628, 639, 645, 651, 656, 658]