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.

A265712 Numbers n such that floor(Sum_{d|n} 1 / sigma(d)) = 2.

Table of values

n a(n)
1 60
2 72
3 84
4 90
5 120
6 144
7 168
8 180
9 210
10 216
11 240
12 252
13 264
14 270
15 280
16 288
17 300
18 312
19 324
20 330
21 336
22 360
23 378
24 384
25 390
26 396
27 408
28 420
29 432
30 450
31 456
32 462
33 468
34 480
35 504
36 510
37 528
38 540
39 546
40 552
41 560
42 570
43 576
44 588
45 600
46 612
47 624
48 630
49 648
50 660
51 672
52 684
53 690

List of values

[60, 72, 84, 90, 120, 144, 168, 180, 210, 216, 240, 252, 264, 270, 280, 288, 300, 312, 324, 330, 336, 360, 378, 384, 390, 396, 408, 420, 432, 450, 456, 462, 468, 480, 504, 510, 528, 540, 546, 552, 560, 570, 576, 588, 600, 612, 624, 630, 648, 660, 672, 684, 690]