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.

A291318 Semiprimes of the form p*q such that p+q-1 is prime.

Table of values

n a(n)
1 4
2 9
3 15
4 33
5 35
6 49
7 51
8 65
9 77
10 87
11 91
12 95
13 119
14 123
15 143
16 161
17 177
18 185
19 209
20 213
21 215
22 217
23 221
24 247
25 259
26 287
27 303
28 321
29 329
30 335
31 341
32 361
33 371
34 377
35 395
36 403
37 407
38 411
39 427
40 437
41 447
42 469
43 473
44 485
45 511
46 515
47 527
48 533
49 537
50 545
51 551
52 573
53 581
54 591
55 611
56 629

List of values

[4, 9, 15, 33, 35, 49, 51, 65, 77, 87, 91, 95, 119, 123, 143, 161, 177, 185, 209, 213, 215, 217, 221, 247, 259, 287, 303, 321, 329, 335, 341, 361, 371, 377, 395, 403, 407, 411, 427, 437, 447, 469, 473, 485, 511, 515, 527, 533, 537, 545, 551, 573, 581, 591, 611, 629]