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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.

A379157 Prime powers p such that the interval from p to the next prime power contains a unique prime number.

Table of values

n a(n)
1 3
2 4
3 7
4 9
5 13
6 16
7 23
8 27
9 31
10 32
11 47
12 49
13 61
14 64
15 79
16 81
17 113
18 125
19 127
20 128
21 167
22 169
23 241
24 243
25 251
26 256
27 283
28 289
29 337
30 343
31 359
32 361
33 509
34 512
35 523
36 529
37 619
38 625
39 727
40 729
41 839
42 841
43 953
44 961
45 1021
46 1024
47 1327
48 1331
49 1367
50 1369
51 1669
52 1681
53 1847
54 1849

List of values

[3, 4, 7, 9, 13, 16, 23, 27, 31, 32, 47, 49, 61, 64, 79, 81, 113, 125, 127, 128, 167, 169, 241, 243, 251, 256, 283, 289, 337, 343, 359, 361, 509, 512, 523, 529, 619, 625, 727, 729, 839, 841, 953, 961, 1021, 1024, 1327, 1331, 1367, 1369, 1669, 1681, 1847, 1849]