cp's OEIS Frontend

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.

A291438 Smallest prime of the form (2*n)*3^m + 1 for some m >= 0, or -1 if no such prime exists.

Table of values

n a(n)
1 3
2 5
3 7
4 73
5 11
6 13
7 43
8 17
9 19
10 61
11 23
12 73
13 79
14 29
15 31
16 97
17 103
18 37
19 3079
20 41
21 43
22 397
23 47
24 433
25 151
26 53
27 163
28 1102249
29 59
30 61
31 5023
32 193
33 67
34 613
35 71
36 73
37 223
38 229
39 79
40 241
41 83
42 757
43 6967
44 89
45 271
46 277
47 283
48 97
49 883
50 101
51 103
52 313
53 107
54 109
55 331
56 113
57 3079

List of values

[3, 5, 7, 73, 11, 13, 43, 17, 19, 61, 23, 73, 79, 29, 31, 97, 103, 37, 3079, 41, 43, 397, 47, 433, 151, 53, 163, 1102249, 59, 61, 5023, 193, 67, 613, 71, 73, 223, 229, 79, 241, 83, 757, 6967, 89, 271, 277, 283, 97, 883, 101, 103, 313, 107, 109, 331, 113, 3079]