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.

A069081 Numbers n such that sigma(n)/tau(n) has denominator 2.

Table of values

n a(n)
1 2
2 10
3 18
4 24
5 26
6 32
7 34
8 50
9 58
10 74
11 82
12 88
13 90
14 98
15 106
16 120
17 122
18 130
19 146
20 152
21 160
22 170
23 178
24 194
25 202
26 216
27 218
28 226
29 234
30 242
31 250
32 274
33 288
34 290
35 298
36 306
37 312
38 314
39 338
40 344
41 346
42 362
43 370
44 386
45 394
46 408
47 410
48 416
49 440
50 442
51 458
52 466
53 472
54 482
55 490

List of values

[2, 10, 18, 24, 26, 32, 34, 50, 58, 74, 82, 88, 90, 98, 106, 120, 122, 130, 146, 152, 160, 170, 178, 194, 202, 216, 218, 226, 234, 242, 250, 274, 288, 290, 298, 306, 312, 314, 338, 344, 346, 362, 370, 386, 394, 408, 410, 416, 440, 442, 458, 466, 472, 482, 490]