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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.

A172258 Primes p such that exactly one of the numbers 2p-3 and 2p+3 is prime.

Table of values

n a(n)
1 2
2 3
3 11
4 19
5 23
6 29
7 31
8 37
9 41
10 47
11 71
12 73
13 83
14 89
15 101
16 107
17 139
18 173
19 181
20 191
21 197
22 199
23 211
24 227
25 229
26 233
27 241
28 251
29 263
30 269
31 277
32 307
33 311
34 317
35 331
36 337
37 347
38 349
39 353
40 373
41 379
42 383
43 397
44 409
45 421
46 431
47 433
48 439
49 443
50 457
51 461
52 463
53 467
54 503
55 509

List of values

[2, 3, 11, 19, 23, 29, 31, 37, 41, 47, 71, 73, 83, 89, 101, 107, 139, 173, 181, 191, 197, 199, 211, 227, 229, 233, 241, 251, 263, 269, 277, 307, 311, 317, 331, 337, 347, 349, 353, 373, 379, 383, 397, 409, 421, 431, 433, 439, 443, 457, 461, 463, 467, 503, 509]