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.

A178318 Primes which remain prime after reflection across a vertical line through the middle of the number (numbers are written as digital clock style numerals).

Table of values

n a(n)
1 2
2 5
3 11
4 101
5 181
6 1051
7 1181
8 1201
9 1811
10 10151
11 11251
12 11551
13 12101
14 12211
15 12511
16 15121
17 18181
18 100151
19 100501
20 101501
21 101581
22 102001
23 102101
24 102181
25 102551
26 105211
27 105251
28 108881
29 110051
30 110581
31 110881
32 111521
33 111581
34 115021
35 115201

List of values

[2, 5, 11, 101, 181, 1051, 1181, 1201, 1811, 10151, 11251, 11551, 12101, 12211, 12511, 15121, 18181, 100151, 100501, 101501, 101581, 102001, 102101, 102181, 102551, 105211, 105251, 108881, 110051, 110581, 110881, 111521, 111581, 115021, 115201]

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

Content is available under The OEIS End-User License Agreement.