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.

A143829 Numbers n such that 10n^2 - 1 is prime.

Table of values

n a(n)
1 3
2 6
3 9
4 12
5 21
6 30
7 33
8 36
9 45
10 48
11 60
12 69
13 72
14 75
15 81
16 87
17 99
18 108
19 111
20 114
21 117
22 120
23 123
24 126
25 129
26 153
27 165
28 168
29 174
30 177
31 183
32 201
33 204
34 207
35 222
36 234
37 243
38 252
39 267
40 279
41 282
42 285
43 294
44 303
45 312
46 315
47 318
48 339
49 345
50 348
51 369
52 378
53 381
54 384
55 393
56 396

List of values

[3, 6, 9, 12, 21, 30, 33, 36, 45, 48, 60, 69, 72, 75, 81, 87, 99, 108, 111, 114, 117, 120, 123, 126, 129, 153, 165, 168, 174, 177, 183, 201, 204, 207, 222, 234, 243, 252, 267, 279, 282, 285, 294, 303, 312, 315, 318, 339, 345, 348, 369, 378, 381, 384, 393, 396]