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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.

A196415 Values of n such that (product of first n composite numbers) / (sum of first n composite numbers) is an integer.

Table of values

n a(n)
1 1
2 4
3 7
4 10
5 13
6 15
7 16
8 21
9 32
10 33
11 56
12 57
13 60
14 70
15 77
16 80
17 83
18 84
19 88
20 92
21 93
22 97
23 112
24 114
25 115
26 120
27 122
28 130
29 134
30 141
31 147
32 153
33 155
34 164
35 165
36 188
37 191
38 196
39 201
40 202
41 213
42 222
43 225
44 226
45 229
46 243
47 245
48 248
49 252
50 260
51 264
52 265
53 268
54 273
55 274
56 281

List of values

[1, 4, 7, 10, 13, 15, 16, 21, 32, 33, 56, 57, 60, 70, 77, 80, 83, 84, 88, 92, 93, 97, 112, 114, 115, 120, 122, 130, 134, 141, 147, 153, 155, 164, 165, 188, 191, 196, 201, 202, 213, 222, 225, 226, 229, 243, 245, 248, 252, 260, 264, 265, 268, 273, 274, 281]