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.

A347344 Positive integers k such that k with the first (most significant) digit repeated is prime.

Table of values

n a(n)
1 1
2 13
3 23
4 27
5 29
6 31
7 37
8 43
9 49
10 57
11 61
12 73
13 81
14 83
15 87
16 91
17 97
18 103
19 109
20 117
21 123
22 129
23 151
24 153
25 163
26 171
27 181
28 187
29 193
30 203
31 207
32 213
33 221
34 237
35 239
36 243
37 251
38 267
39 269
40 273
41 281
42 287
43 293
44 297
45 301
46 307
47 313
48 319
49 323
50 329
51 331
52 343
53 347
54 359
55 361

List of values

[1, 13, 23, 27, 29, 31, 37, 43, 49, 57, 61, 73, 81, 83, 87, 91, 97, 103, 109, 117, 123, 129, 151, 153, 163, 171, 181, 187, 193, 203, 207, 213, 221, 237, 239, 243, 251, 267, 269, 273, 281, 287, 293, 297, 301, 307, 313, 319, 323, 329, 331, 343, 347, 359, 361]