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.

A015774 Numbers k such that phi(k) | sigma_15(k).

Table of values

n a(n)
1 1
2 2
3 3
4 6
5 12
6 14
7 15
8 30
9 35
10 38
11 42
12 46
13 54
14 56
15 70
16 78
17 87
18 95
19 105
20 114
21 126
22 134
23 135
24 138
25 140
26 147
27 161
28 168
29 174
30 182
31 184
32 190
33 209
34 210
35 215
36 216
37 222
38 230
39 248
40 258
41 264
42 270
43 285
44 294
45 297
46 299
47 315
48 322
49 357
50 398
51 402
52 414
53 418
54 420

List of values

[1, 2, 3, 6, 12, 14, 15, 30, 35, 38, 42, 46, 54, 56, 70, 78, 87, 95, 105, 114, 126, 134, 135, 138, 140, 147, 161, 168, 174, 182, 184, 190, 209, 210, 215, 216, 222, 230, 248, 258, 264, 270, 285, 294, 297, 299, 315, 322, 357, 398, 402, 414, 418, 420]