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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.

A222116 Palindromic primes whose sum of digits is also a palindromic prime.

Table of values

n a(n)
1 2
2 3
3 5
4 7
5 11
6 101
7 131
8 151
9 191
10 313
11 353
12 10301
13 10501
14 11311
15 13331
16 30103
17 1003001
18 1123211
19 1201021
20 1221221
21 1303031
22 1311131
23 3001003
24 3103013
25 100030001
26 100050001
27 100111001
28 100131001
29 101030101
30 110111011
31 110232011
32 111010111
33 111050111

List of values

[2, 3, 5, 7, 11, 101, 131, 151, 191, 313, 353, 10301, 10501, 11311, 13331, 30103, 1003001, 1123211, 1201021, 1221221, 1303031, 1311131, 3001003, 3103013, 100030001, 100050001, 100111001, 100131001, 101030101, 110111011, 110232011, 111010111, 111050111]

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

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