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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.

A240678 Primes p such that p*10+k is prime for exactly one value of the digit k.

Table of values

n a(n)
1 11
2 29
3 41
4 47
5 71
6 79
7 83
8 131
9 137
10 139
11 151
12 163
13 173
14 181
15 191
16 227
17 257
18 263
19 277
20 281
21 293
22 307
23 311
24 313
25 359
26 383
27 449
28 491
29 503
30 509
31 557
32 563
33 569
34 577
35 587
36 593
37 601
38 617
39 647
40 659
41 661
42 677
43 683
44 719
45 739
46 743
47 751
48 809
49 821
50 827
51 857
52 877
53 881

List of values

[11, 29, 41, 47, 71, 79, 83, 131, 137, 139, 151, 163, 173, 181, 191, 227, 257, 263, 277, 281, 293, 307, 311, 313, 359, 383, 449, 491, 503, 509, 557, 563, 569, 577, 587, 593, 601, 617, 647, 659, 661, 677, 683, 719, 739, 743, 751, 809, 821, 827, 857, 877, 881]