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.

A319450 Numbers k such that k and k + 1 both have primitive roots.

Table of values

n a(n)
1 1
2 2
3 3
4 4
5 5
6 6
7 9
8 10
9 13
10 17
11 18
12 22
13 25
14 26
15 37
16 46
17 49
18 53
19 58
20 61
21 73
22 81
23 82
24 97
25 106
26 121
27 157
28 162
29 166
30 178
31 193
32 226
33 241
34 242
35 250
36 262
37 277
38 313
39 337
40 346
41 358
42 361
43 382
44 397
45 421
46 457
47 466
48 478
49 486
50 502
51 541
52 562
53 577
54 586
55 613
56 625
57 661
58 673
59 718

List of values

[1, 2, 3, 4, 5, 6, 9, 10, 13, 17, 18, 22, 25, 26, 37, 46, 49, 53, 58, 61, 73, 81, 82, 97, 106, 121, 157, 162, 166, 178, 193, 226, 241, 242, 250, 262, 277, 313, 337, 346, 358, 361, 382, 397, 421, 457, 466, 478, 486, 502, 541, 562, 577, 586, 613, 625, 661, 673, 718]