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.

A125774 Numbers k such that 3^k mod k = 3^k mod k^2.

Table of values

n a(n)
1 1
2 2
3 3
4 4
5 9
6 11
7 20
8 22
9 27
10 33
11 81
12 99
13 220
14 243
15 644
16 729
17 1220
18 2187
19 2420
20 5060
21 6561
22 7128
23 8368
24 13420
25 14740
26 19683
27 23620
28 40573
29 55660
30 59049
31 145420
32 147620
33 162140
34 177147
35 237820
36 259820
37 290620
38 308660
39 339020
40 447740
41 531441
42 548660

List of values

[1, 2, 3, 4, 9, 11, 20, 22, 27, 33, 81, 99, 220, 243, 644, 729, 1220, 2187, 2420, 5060, 6561, 7128, 8368, 13420, 14740, 19683, 23620, 40573, 55660, 59049, 145420, 147620, 162140, 177147, 237820, 259820, 290620, 308660, 339020, 447740, 531441, 548660]