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.

A037020 Numbers whose sum of proper (or aliquot) divisors is a prime.

Table of values

n a(n)
1 4
2 8
3 21
4 27
5 32
6 35
7 39
8 50
9 55
10 57
11 63
12 65
13 77
14 85
15 98
16 111
17 115
18 125
19 128
20 129
21 155
22 161
23 171
24 175
25 185
26 187
27 189
28 201
29 203
30 205
31 209
32 221
33 235
34 237
35 242
36 245
37 265
38 275
39 279
40 291
41 299
42 305
43 309
44 319
45 323
46 324
47 325
48 327
49 335
50 338
51 341
52 365
53 371
54 377
55 381

List of values

[4, 8, 21, 27, 32, 35, 39, 50, 55, 57, 63, 65, 77, 85, 98, 111, 115, 125, 128, 129, 155, 161, 171, 175, 185, 187, 189, 201, 203, 205, 209, 221, 235, 237, 242, 245, 265, 275, 279, 291, 299, 305, 309, 319, 323, 324, 325, 327, 335, 338, 341, 365, 371, 377, 381]