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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.

A023885 Nonprimes whose average of proper divisors is an integer.

Table of values

n a(n)
1 6
2 9
3 15
4 25
5 30
6 33
7 44
8 49
9 51
10 69
11 81
12 87
13 91
14 114
15 117
16 120
17 121
18 123
19 124
20 133
21 135
22 141
23 159
24 164
25 169
26 170
27 177
28 182
29 207
30 213
31 217
32 244
33 247
34 249
35 252
36 259
37 267
38 270
39 273
40 276
41 282
42 284
43 289
44 301
45 303
46 306
47 310
48 320
49 321
50 339
51 343
52 345

List of values

[6, 9, 15, 25, 30, 33, 44, 49, 51, 69, 81, 87, 91, 114, 117, 120, 121, 123, 124, 133, 135, 141, 159, 164, 169, 170, 177, 182, 207, 213, 217, 244, 247, 249, 252, 259, 267, 270, 273, 276, 282, 284, 289, 301, 303, 306, 310, 320, 321, 339, 343, 345]