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.

A166283 Primes such that the concatenation of its index and itself is a prime.

Table of values

n a(n)
1 3
2 7
3 13
4 37
5 59
6 61
7 83
8 103
9 113
10 149
11 151
12 179
13 181
14 197
15 199
16 251
17 263
18 269
19 271
20 283
21 353
22 421
23 431
24 439
25 479
26 487
27 523
28 631
29 643
30 653
31 661
32 677
33 709
34 769
35 811
36 829
37 853
38 937
39 947
40 1019
41 1039
42 1049
43 1051
44 1277
45 1319
46 1399
47 1427
48 1433
49 1489
50 1543
51 1663

List of values

[3, 7, 13, 37, 59, 61, 83, 103, 113, 149, 151, 179, 181, 197, 199, 251, 263, 269, 271, 283, 353, 421, 431, 439, 479, 487, 523, 631, 643, 653, 661, 677, 709, 769, 811, 829, 853, 937, 947, 1019, 1039, 1049, 1051, 1277, 1319, 1399, 1427, 1433, 1489, 1543, 1663]