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.

A250095 Positive integers k such that the numerator of the harmonic mean of the proper divisors of k is equal to k.

Table of values

n a(n)
1 4
2 27
3 28
4 54
5 56
6 64
7 68
8 91
9 99
10 100
11 133
12 138
13 148
14 154
15 165
16 188
17 217
18 222
19 247
20 259
21 268
22 276
23 279
24 290
25 301
26 308
27 369
28 375
29 388
30 403
31 414
32 427
33 428
34 430
35 469
36 474
37 481
38 508
39 511
40 540
41 544
42 548
43 549
44 553
45 559
46 589
47 609
48 621
49 627
50 628
51 639
52 642
53 665
54 668

List of values

[4, 27, 28, 54, 56, 64, 68, 91, 99, 100, 133, 138, 148, 154, 165, 188, 217, 222, 247, 259, 268, 276, 279, 290, 301, 308, 369, 375, 388, 403, 414, 427, 428, 430, 469, 474, 481, 508, 511, 540, 544, 548, 549, 553, 559, 589, 609, 621, 627, 628, 639, 642, 665, 668]