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.

A089623 Numbers n such that n^2 + 2n - 1 is prime.

Table of values

n a(n)
1 1
2 2
3 4
4 6
5 8
6 12
7 14
8 18
9 20
10 26
11 28
12 32
13 34
14 36
15 42
16 46
17 48
18 54
19 60
20 62
21 68
22 70
23 74
24 76
25 88
26 92
27 102
28 106
29 116
30 118
31 120
32 126
33 130
34 134
35 138
36 144
37 154
38 160
39 168
40 172
41 176
42 182
43 190
44 204
45 210
46 216
47 222
48 230
49 232
50 236
51 238
52 246
53 252
54 256
55 258
56 264
57 266
58 272

List of values

[1, 2, 4, 6, 8, 12, 14, 18, 20, 26, 28, 32, 34, 36, 42, 46, 48, 54, 60, 62, 68, 70, 74, 76, 88, 92, 102, 106, 116, 118, 120, 126, 130, 134, 138, 144, 154, 160, 168, 172, 176, 182, 190, 204, 210, 216, 222, 230, 232, 236, 238, 246, 252, 256, 258, 264, 266, 272]