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.

A050530 Numbers k such that k - phi(k) is prime.

Table of values

n a(n)
1 4
2 9
3 15
4 25
5 33
6 35
7 49
8 51
9 65
10 77
11 87
12 91
13 95
14 119
15 121
16 123
17 143
18 161
19 169
20 177
21 185
22 209
23 213
24 215
25 217
26 221
27 247
28 255
29 259
30 287
31 289
32 303
33 321
34 329
35 335
36 341
37 361
38 371
39 377
40 395
41 403
42 407
43 411
44 427
45 435
46 437
47 447
48 455
49 469
50 473
51 485
52 511
53 515
54 527
55 529

List of values

[4, 9, 15, 25, 33, 35, 49, 51, 65, 77, 87, 91, 95, 119, 121, 123, 143, 161, 169, 177, 185, 209, 213, 215, 217, 221, 247, 255, 259, 287, 289, 303, 321, 329, 335, 341, 361, 371, 377, 395, 403, 407, 411, 427, 435, 437, 447, 455, 469, 473, 485, 511, 515, 527, 529]