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.

A228828 Numbers n such that n^2 + pi(n) is prime.

Table of values

n a(n)
1 2
2 3
3 7
4 12
5 18
6 21
7 36
8 37
9 42
10 45
11 52
12 55
13 60
14 61
15 65
16 68
17 70
18 79
19 84
20 95
21 98
22 113
23 130
24 135
25 143
26 145
27 155
28 180
29 181
30 185
31 195
32 205
33 216
34 222
35 231
36 239
37 253
38 262
39 273
40 275
41 325
42 332
43 334
44 354
45 368
46 370
47 385
48 402
49 417
50 421
51 432
52 433
53 454
54 462
55 488
56 505
57 516

List of values

[2, 3, 7, 12, 18, 21, 36, 37, 42, 45, 52, 55, 60, 61, 65, 68, 70, 79, 84, 95, 98, 113, 130, 135, 143, 145, 155, 180, 181, 185, 195, 205, 216, 222, 231, 239, 253, 262, 273, 275, 325, 332, 334, 354, 368, 370, 385, 402, 417, 421, 432, 433, 454, 462, 488, 505, 516]