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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.

A342681 Primes which, when added to their reversals, produce palindromic primes.

Table of values

n a(n)
1 241
2 443
3 613
4 641
5 811
6 20011
7 20047
8 20051
9 20101
10 20161
11 20201
12 20347
13 20441
14 20477
15 21001
16 21157
17 21211
18 21377
19 21467
20 22027
21 22031
22 22147
23 22171
24 22247
25 22367
26 23017
27 23021
28 23131
29 23357
30 23417
31 23447
32 24007
33 24121
34 24151
35 24407
36 25031
37 25111
38 25117
39 25121
40 26021
41 26107
42 26111
43 26417
44 27011
45 27407
46 28001

List of values

[241, 443, 613, 641, 811, 20011, 20047, 20051, 20101, 20161, 20201, 20347, 20441, 20477, 21001, 21157, 21211, 21377, 21467, 22027, 22031, 22147, 22171, 22247, 22367, 23017, 23021, 23131, 23357, 23417, 23447, 24007, 24121, 24151, 24407, 25031, 25111, 25117, 25121, 26021, 26107, 26111, 26417, 27011, 27407, 28001]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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