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.

A175680 Semiprimes that are not Chen semiprimes A175634.

Table of values

n a(n)
1 4
2 14
3 26
4 38
5 46
6 62
7 74
8 77
9 86
10 94
11 95
12 106
13 121
14 122
15 134
16 143
17 146
18 158
19 161
20 166
21 178
22 185
23 194
24 203
25 206
26 218
27 221
28 226
29 254
30 262
31 278
32 302
33 314
34 321
35 326
36 329
37 334
38 339
39 341
40 346
41 362
42 365
43 371
44 381
45 386
46 395
47 398
48 422
49 437
50 446
51 451
52 458
53 466
54 471

List of values

[4, 14, 26, 38, 46, 62, 74, 77, 86, 94, 95, 106, 121, 122, 134, 143, 146, 158, 161, 166, 178, 185, 194, 203, 206, 218, 221, 226, 254, 262, 278, 302, 314, 321, 326, 329, 334, 339, 341, 346, 362, 365, 371, 381, 386, 395, 398, 422, 437, 446, 451, 458, 466, 471]