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.

A032665 Digit '2' concatenated with a(n) is a prime.

Table of values

n a(n)
1 3
2 9
3 11
4 23
5 27
6 29
7 33
8 39
9 41
10 51
11 57
12 63
13 69
14 71
15 77
16 81
17 83
18 93
19 111
20 113
21 129
22 131
23 137
24 141
25 143
26 153
27 161
28 179
29 203
30 207
31 213
32 221
33 237
34 239
35 243
36 251
37 267
38 269
39 273
40 281
41 287
42 293
43 297
44 309
45 311
46 333
47 339
48 341
49 347
50 351
51 357
52 371
53 377
54 381
55 383
56 389

List of values

[3, 9, 11, 23, 27, 29, 33, 39, 41, 51, 57, 63, 69, 71, 77, 81, 83, 93, 111, 113, 129, 131, 137, 141, 143, 153, 161, 179, 203, 207, 213, 221, 237, 239, 243, 251, 267, 269, 273, 281, 287, 293, 297, 309, 311, 333, 339, 341, 347, 351, 357, 371, 377, 381, 383, 389]