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.

A032619 Numbers k such that k concatenated with k+4 is a prime.

Table of values

n a(n)
1 3
2 5
3 17
4 27
5 35
6 39
7 45
8 47
9 63
10 65
11 83
12 93
13 99
14 113
15 123
16 147
17 149
18 173
19 185
20 203
21 209
22 213
23 219
24 227
25 239
26 249
27 255
28 263
29 267
30 285
31 287
32 303
33 309
34 317
35 327
36 329
37 333
38 363
39 365
40 399
41 413
42 419
43 423
44 435
45 447
46 459
47 465
48 467
49 473
50 489
51 497
52 509
53 515
54 519

List of values

[3, 5, 17, 27, 35, 39, 45, 47, 63, 65, 83, 93, 99, 113, 123, 147, 149, 173, 185, 203, 209, 213, 219, 227, 239, 249, 255, 263, 267, 285, 287, 303, 309, 317, 327, 329, 333, 363, 365, 399, 413, 419, 423, 435, 447, 459, 465, 467, 473, 489, 497, 509, 515, 519]