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.

A140212 Numbers n not a multiple of 10 such that reverse(n^2) = reverse(n)^2, but reverse(n) is different from n.

Table of values

n a(n)
1 12
2 13
3 21
4 31
5 102
6 103
7 112
8 113
9 122
10 201
11 211
12 221
13 301
14 311
15 1002
16 1003
17 1011
18 1012
19 1013
20 1021
21 1022
22 1031
23 1101
24 1102
25 1103
26 1112
27 1113
28 1121
29 1122
30 1201
31 1202
32 1211
33 1212
34 1301
35 2001
36 2011
37 2012
38 2021
39 2022
40 2101
41 2102
42 2111
43 2121
44 2201
45 2202
46 2211
47 3001
48 3011
49 3101
50 3111

List of values

[12, 13, 21, 31, 102, 103, 112, 113, 122, 201, 211, 221, 301, 311, 1002, 1003, 1011, 1012, 1013, 1021, 1022, 1031, 1101, 1102, 1103, 1112, 1113, 1121, 1122, 1201, 1202, 1211, 1212, 1301, 2001, 2011, 2012, 2021, 2022, 2101, 2102, 2111, 2121, 2201, 2202, 2211, 3001, 3011, 3101, 3111]