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.

A330477 Semiprimes (A001358) p*q such that p*q+p+q is also a semiprime.

Table of values

n a(n)
1 9
2 22
3 25
4 39
5 62
6 69
7 77
8 87
9 91
10 94
11 95
12 106
13 115
14 119
15 121
16 122
17 133
18 134
19 142
20 146
21 159
22 183
23 187
24 202
25 213
26 214
27 218
28 219
29 226
30 235
31 237
32 249
33 253
34 259
35 262
36 265
37 274
38 287
39 289
40 291
41 299
42 303
43 305
44 309
45 314
46 335
47 362
48 381
49 386
50 393
51 403
52 411
53 417
54 422
55 446
56 458
57 469
58 473
59 489
60 501
61 502
62 505

List of values

[9, 22, 25, 39, 62, 69, 77, 87, 91, 94, 95, 106, 115, 119, 121, 122, 133, 134, 142, 146, 159, 183, 187, 202, 213, 214, 218, 219, 226, 235, 237, 249, 253, 259, 262, 265, 274, 287, 289, 291, 299, 303, 305, 309, 314, 335, 362, 381, 386, 393, 403, 411, 417, 422, 446, 458, 469, 473, 489, 501, 502, 505]