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.

A174213 Natural numbers n such that the concatenation n//1331 is a prime number.

Table of values

n a(n)
1 6
2 8
3 9
4 23
5 29
6 30
7 32
8 39
9 42
10 45
11 53
12 57
13 65
14 80
15 92
16 95
17 101
18 102
19 108
20 113
21 116
22 128
23 141
24 144
25 153
26 161
27 182
28 183
29 186
30 200
31 206
32 216
33 218
34 219
35 225
36 239
37 245
38 249
39 260
40 266
41 270
42 273
43 279
44 281
45 282
46 296
47 311
48 314
49 318
50 321

List of values

[6, 8, 9, 23, 29, 30, 32, 39, 42, 45, 53, 57, 65, 80, 92, 95, 101, 102, 108, 113, 116, 128, 141, 144, 153, 161, 182, 183, 186, 200, 206, 216, 218, 219, 225, 239, 245, 249, 260, 266, 270, 273, 279, 281, 282, 296, 311, 314, 318, 321]