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.

A124273 Primes p that divide A124271(p) = Sum_{i=1..p} (prime(i)^p - 1) / (prime(i) - 1).

Table of values

n a(n)
1 3
2 7
3 13
4 17
5 19
6 31
7 47
8 59
9 61
10 71
11 101
12 103
13 107
14 109
15 137
16 149
17 151
18 157
19 167
20 197
21 211
22 223
23 227
24 229
25 269
26 317
27 337
28 349
29 353
30 379
31 383
32 389
33 401
34 421
35 439
36 449
37 457
38 463
39 479
40 521
41 523
42 541
43 547
44 563
45 569
46 571
47 587
48 599
49 613
50 617
51 631
52 643
53 647
54 677

List of values

[3, 7, 13, 17, 19, 31, 47, 59, 61, 71, 101, 103, 107, 109, 137, 149, 151, 157, 167, 197, 211, 223, 227, 229, 269, 317, 337, 349, 353, 379, 383, 389, 401, 421, 439, 449, 457, 463, 479, 521, 523, 541, 547, 563, 569, 571, 587, 599, 613, 617, 631, 643, 647, 677]