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.

A077359 Primes whose external digits form a prime. Or primes from which deleting the internal digits leaves a prime.

Table of values

n a(n)
1 2
2 3
3 5
4 7
5 11
6 13
7 17
8 19
9 23
10 29
11 31
12 37
13 41
14 43
15 47
16 53
17 59
18 61
19 67
20 71
21 73
22 79
23 83
24 89
25 97
26 101
27 103
28 107
29 109
30 113
31 127
32 131
33 137
34 139
35 149
36 151
37 157
38 163
39 167
40 173
41 179
42 181
43 191
44 193
45 197
46 199
47 223
48 229
49 233
50 239
51 263
52 269
53 283
54 293
55 307
56 311
57 317
58 331

List of values

[2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 223, 229, 233, 239, 263, 269, 283, 293, 307, 311, 317, 331]