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.

A143822 Primes p such that sigma_0((p*p + 1)/2) = 4.

Table of values

n a(n)
1 13
2 17
3 23
4 31
5 37
6 53
7 67
8 89
9 97
10 103
11 109
12 113
13 127
14 137
15 149
16 151
17 163
18 167
19 179
20 197
21 211
22 223
23 227
24 229
25 241
26 263
27 269
28 277
29 281
30 283
31 311
32 331
33 347
34 359
35 367
36 373
37 383
38 389
39 397
40 419
41 431
42 433
43 439
44 479
45 491
46 503
47 509
48 541
49 547
50 587
51 601
52 617
53 619
54 653

List of values

[13, 17, 23, 31, 37, 53, 67, 89, 97, 103, 109, 113, 127, 137, 149, 151, 163, 167, 179, 197, 211, 223, 227, 229, 241, 263, 269, 277, 281, 283, 311, 331, 347, 359, 367, 373, 383, 389, 397, 419, 431, 433, 439, 479, 491, 503, 509, 541, 547, 587, 601, 617, 619, 653]