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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.

A056206 Smallest prime p such that p + 2^n is also a prime.

Table of values

n a(n)
0 2
1 3
2 3
3 3
4 3
5 5
6 3
7 3
8 7
9 11
10 7
11 5
12 3
13 17
14 37
15 3
16 3
17 29
18 3
19 53
20 7
21 17
22 67
23 11
24 43
25 41
26 97
27 29
28 3
29 11
30 3
31 11
32 61
33 17
34 79
35 53
36 31
37 29
38 7
39 23
40 97
41 71
42 277
43 29
44 7
45 59
46 127
47 5
48 61
49 191
50 193
51 101
52 37
53 5
54 163
55 3
56 97
57 131
58 577
59 131
60 151
61 197
62 193
63 29
64 13
65 131
66 709
67 3
68 61

List of values

[2, 3, 3, 3, 3, 5, 3, 3, 7, 11, 7, 5, 3, 17, 37, 3, 3, 29, 3, 53, 7, 17, 67, 11, 43, 41, 97, 29, 3, 11, 3, 11, 61, 17, 79, 53, 31, 29, 7, 23, 97, 71, 277, 29, 7, 59, 127, 5, 61, 191, 193, 101, 37, 5, 163, 3, 97, 131, 577, 131, 151, 197, 193, 29, 13, 131, 709, 3, 61]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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