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.

A109071 Numbers k such that the string k123123 is prime.

Table of values

n a(n)
1 2
2 8
3 19
4 31
5 37
6 64
7 68
8 71
9 79
10 85
11 89
12 94
13 100
14 109
15 128
16 136
17 137
18 148
19 149
20 157
21 170
22 178
23 179
24 181
25 184
26 190
27 194
28 211
29 215
30 233
31 241
32 250
33 251
34 269
35 277
36 284
37 290
38 293
39 298
40 304
41 310
42 313
43 314
44 316
45 317
46 326
47 331
48 353
49 355
50 367
51 370
52 376
53 386
54 394
55 400

List of values

[2, 8, 19, 31, 37, 64, 68, 71, 79, 85, 89, 94, 100, 109, 128, 136, 137, 148, 149, 157, 170, 178, 179, 181, 184, 190, 194, 211, 215, 233, 241, 250, 251, 269, 277, 284, 290, 293, 298, 304, 310, 313, 314, 316, 317, 326, 331, 353, 355, 367, 370, 376, 386, 394, 400]