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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.

A090190 Symmetric primes: an odd prime p is symmetric if there exists an odd prime q such that |p-q| = gcd(p-1,q-1).

Table of values

n a(n)
1 3
2 5
3 7
4 11
5 13
6 17
7 19
8 29
9 31
10 37
11 41
12 43
13 53
14 59
15 61
16 67
17 71
18 73
19 79
20 89
21 97
22 101
23 103
24 107
25 109
26 113
27 127
28 131
29 137
30 139
31 149
32 151
33 157
34 163
35 179
36 181
37 191
38 193
39 197
40 199
41 211
42 223
43 227
44 229
45 233
46 239
47 241
48 251
49 257
50 269
51 271
52 277
53 281
54 283
55 293
56 307
57 311

List of values

[3, 5, 7, 11, 13, 17, 19, 29, 31, 37, 41, 43, 53, 59, 61, 67, 71, 73, 79, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241, 251, 257, 269, 271, 277, 281, 283, 293, 307, 311]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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