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.

A266987 Primes p for which the average of the primitive roots equals p/2.

Table of values

n a(n)
1 2
2 5
3 13
4 17
5 19
6 29
7 37
8 41
9 53
10 61
11 73
12 89
13 97
14 101
15 109
16 113
17 137
18 149
19 157
20 173
21 181
22 193
23 197
24 229
25 233
26 241
27 257
28 269
29 277
30 281
31 293
32 307
33 313
34 317
35 337
36 349
37 353
38 373
39 389
40 397
41 401
42 409
43 421
44 433
45 449

List of values

[2, 5, 13, 17, 19, 29, 37, 41, 53, 61, 73, 89, 97, 101, 109, 113, 137, 149, 157, 173, 181, 193, 197, 229, 233, 241, 257, 269, 277, 281, 293, 307, 313, 317, 337, 349, 353, 373, 389, 397, 401, 409, 421, 433, 449]