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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.

A162237 Primes p such that p^2+3*p+1 is not prime.

Table of values

n a(n)
1 11
2 13
3 17
4 31
5 41
6 61
7 71
8 73
9 79
10 83
11 89
12 97
13 101
14 103
15 107
16 109
17 127
18 131
19 149
20 151
21 167
22 181
23 191
24 193
25 197
26 199
27 211
28 223
29 227
30 233
31 241
32 251
33 269
34 271
35 277
36 281
37 283
38 307
39 311
40 317
41 331
42 337
43 347
44 367
45 383
46 389
47 397
48 401
49 409
50 421
51 431
52 433
53 439
54 443

List of values

[11, 13, 17, 31, 41, 61, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 127, 131, 149, 151, 167, 181, 191, 193, 197, 199, 211, 223, 227, 233, 241, 251, 269, 271, 277, 281, 283, 307, 311, 317, 331, 337, 347, 367, 383, 389, 397, 401, 409, 421, 431, 433, 439, 443]