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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.

A130325 Least prime p such that 3*p*2^n-1 is prime.

Table of values

n a(n)
0 2
1 2
2 2
3 2
4 5
5 2
6 2
7 3
8 11
9 17
10 2
11 23
12 29
13 3
14 5
15 3
16 43
17 2
18 7
19 17
20 19
21 3
22 11
23 23
24 13
25 19
26 19
27 7
28 43
29 23
30 71
31 5
32 19
33 2
34 59
35 11
36 59
37 2
38 47
39 31
40 89
41 5
42 2
43 3
44 19
45 107
46 11
47 71
48 59
49 23
50 29
51 7
52 61
53 89
54 2
55 173
56 11
57 17
58 37
59 37
60 31
61 23
62 19
63 2
64 199
65 103
66 59
67 37
68 139
69 17
70 67
71 41
72 43

List of values

[2, 2, 2, 2, 5, 2, 2, 3, 11, 17, 2, 23, 29, 3, 5, 3, 43, 2, 7, 17, 19, 3, 11, 23, 13, 19, 19, 7, 43, 23, 71, 5, 19, 2, 59, 11, 59, 2, 47, 31, 89, 5, 2, 3, 19, 107, 11, 71, 59, 23, 29, 7, 61, 89, 2, 173, 11, 17, 37, 37, 31, 23, 19, 2, 199, 103, 59, 37, 139, 17, 67, 41, 43]

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

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