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.

A323427 Primes p such that the concatenation of p^2, p and 1 is prime.

Table of values

n a(n)
1 2
2 5
3 17
4 41
5 89
6 173
7 191
8 197
9 293
10 311
11 353
12 479
13 491
14 647
15 797
16 857
17 887
18 911
19 971
20 1097
21 1181
22 1319
23 1523
24 1847
25 2003
26 2069
27 2153
28 2351
29 2411
30 2459
31 2549
32 2693
33 2699
34 2729
35 2837
36 2843
37 2957
38 2963
39 3011
40 3041
41 3089
42 3359
43 3407
44 3533
45 3557
46 3581
47 3761
48 3767
49 3797
50 4133
51 4289
52 4547
53 4787
54 4937

List of values

[2, 5, 17, 41, 89, 173, 191, 197, 293, 311, 353, 479, 491, 647, 797, 857, 887, 911, 971, 1097, 1181, 1319, 1523, 1847, 2003, 2069, 2153, 2351, 2411, 2459, 2549, 2693, 2699, 2729, 2837, 2843, 2957, 2963, 3011, 3041, 3089, 3359, 3407, 3533, 3557, 3581, 3761, 3767, 3797, 4133, 4289, 4547, 4787, 4937]