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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.

A153436 a(n) is the least k such that k^n*(k^n+1)-1 is prime.

Table of values

n a(n)
1 2
2 2
3 2
4 2
5 4
6 2
7 10
8 4
9 3
10 2
11 6
12 3
13 4
14 21
15 12
16 2
17 30
18 3
19 5
20 47
21 31
22 34
23 27
24 2
25 31
26 2
27 50
28 5
29 20
30 23
31 89
32 29
33 179
34 11
35 2
36 16
37 41
38 96
39 75
40 22
41 55
42 10
43 209
44 46
45 38
46 17
47 34
48 7
49 61
50 121
51 119
52 2
53 68
54 148
55 2
56 164
57 216
58 65
59 527
60 11
61 175
62 354
63 442
64 201
65 54
66 230
67 97
68 433
69 3

List of values

[2, 2, 2, 2, 4, 2, 10, 4, 3, 2, 6, 3, 4, 21, 12, 2, 30, 3, 5, 47, 31, 34, 27, 2, 31, 2, 50, 5, 20, 23, 89, 29, 179, 11, 2, 16, 41, 96, 75, 22, 55, 10, 209, 46, 38, 17, 34, 7, 61, 121, 119, 2, 68, 148, 2, 164, 216, 65, 527, 11, 175, 354, 442, 201, 54, 230, 97, 433, 3]

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

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