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.

A240971 Primes p such that (p^2 + p + 1)/3 is prime.

Table of values

n a(n)
1 7
2 13
3 19
4 31
5 43
6 73
7 97
8 103
9 127
10 157
11 199
12 223
13 241
14 271
15 409
16 421
17 661
18 673
19 727
20 859
21 883
22 937
23 1021
24 1039
25 1051
26 1063
27 1093
28 1447
29 1483
30 1609
31 1657
32 1669
33 1723
34 1753
35 1861
36 1879
37 1993
38 2029
39 2203
40 2437
41 2539
42 2677
43 2719
44 2803
45 2833
46 2953
47 3079
48 3121

List of values

[7, 13, 19, 31, 43, 73, 97, 103, 127, 157, 199, 223, 241, 271, 409, 421, 661, 673, 727, 859, 883, 937, 1021, 1039, 1051, 1063, 1093, 1447, 1483, 1609, 1657, 1669, 1723, 1753, 1861, 1879, 1993, 2029, 2203, 2437, 2539, 2677, 2719, 2803, 2833, 2953, 3079, 3121]