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.

A178836 Numbers n such that the period of 1/n equals the period of 1/R(n), where R(n) (A004086) is the reversal of n.

Table of values

n a(n)
1 3
2 7
3 9
4 11
5 33
6 77
7 99
8 101
9 111
10 121
11 131
12 141
13 151
14 161
15 171
16 181
17 191
18 303
19 313
20 323
21 333
22 343
23 353
24 363
25 373
26 383
27 393
28 707
29 717
30 727
31 737
32 747
33 757
34 767
35 777
36 787
37 797
38 909
39 919
40 929
41 939
42 949
43 959
44 969
45 979
46 989
47 999
48 1001
49 1111
50 1221
51 1331
52 1441
53 1551

List of values

[3, 7, 9, 11, 33, 77, 99, 101, 111, 121, 131, 141, 151, 161, 171, 181, 191, 303, 313, 323, 333, 343, 353, 363, 373, 383, 393, 707, 717, 727, 737, 747, 757, 767, 777, 787, 797, 909, 919, 929, 939, 949, 959, 969, 979, 989, 999, 1001, 1111, 1221, 1331, 1441, 1551]