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.

A161721 Primes p such that the reversal of p is prime and the product of p with its reversal is a palindrome.

Table of values

n a(n)
1 2
2 3
3 11
4 101
5 1021
6 1201
7 111211
8 112111
9 1000211
10 1010201
11 1020101
12 1101211
13 1102111
14 1111021
15 1112011
16 1120001
17 1121011
18 1201111
19 10011101
20 10012001
21 10021001
22 10100201
23 10111001
24 10200101
25 11012011
26 11021011
27 11100121
28 12100111

List of values

[2, 3, 11, 101, 1021, 1201, 111211, 112111, 1000211, 1010201, 1020101, 1101211, 1102111, 1111021, 1112011, 1120001, 1121011, 1201111, 10011101, 10012001, 10021001, 10100201, 10111001, 10200101, 11012011, 11021011, 11100121, 12100111]

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

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