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.

A142863 Semiprimes n (A001358) for which A000001(n) is 2.

Table of values

n a(n)
1 4
2 6
3 9
4 10
5 14
6 21
7 22
8 25
9 26
10 34
11 38
12 39
13 46
14 49
15 55
16 57
17 58
18 62
19 74
20 82
21 86
22 93
23 94
24 106
25 111
26 118
27 121
28 122
29 129
30 134
31 142
32 146
33 155
34 158
35 166
36 169
37 178
38 183
39 194
40 201
41 202
42 203
43 205
44 206
45 214
46 218
47 219
48 226
49 237
50 253
51 254
52 262
53 274
54 278
55 289
56 291
57 298
58 301

List of values

[4, 6, 9, 10, 14, 21, 22, 25, 26, 34, 38, 39, 46, 49, 55, 57, 58, 62, 74, 82, 86, 93, 94, 106, 111, 118, 121, 122, 129, 134, 142, 146, 155, 158, 166, 169, 178, 183, 194, 201, 202, 203, 205, 206, 214, 218, 219, 226, 237, 253, 254, 262, 274, 278, 289, 291, 298, 301]