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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.

A270311 Indices of primes ending with the same decimal digit as the previous or next prime.

Table of values

n a(n)
1 34
2 35
3 42
4 43
5 53
6 54
7 61
8 62
9 68
10 69
11 80
12 81
13 82
14 83
15 101
16 102
17 106
18 107
19 115
20 116
21 125
22 126
23 127
24 128
25 138
26 139
27 141
28 142
29 145
30 146
31 154
32 155
33 157
34 158
35 172
36 173
37 175
38 176
39 177
40 178
41 191
42 192
43 193
44 194
45 204
46 205
47 222
48 223
49 233
50 234
51 258
52 259
53 260
54 266
55 267
56 269
57 270
58 279
59 280
60 289
61 290
62 306
63 307

List of values

[34, 35, 42, 43, 53, 54, 61, 62, 68, 69, 80, 81, 82, 83, 101, 102, 106, 107, 115, 116, 125, 126, 127, 128, 138, 139, 141, 142, 145, 146, 154, 155, 157, 158, 172, 173, 175, 176, 177, 178, 191, 192, 193, 194, 204, 205, 222, 223, 233, 234, 258, 259, 260, 266, 267, 269, 270, 279, 280, 289, 290, 306, 307]