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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.

A109832 Number d such that (A109833(n)+k*d: 0<=k<=A109831(n)) is an arithmetic progression of primes.

Table of values

n a(n)
2 1
3 2
4 2
5 4
6 6
7 6
8 8
9 6
10 6
11 14
12 18
13 12
14 12
15 18
16 12
17 18
18 24
19 30
20 34
21 30
22 6
23 12
24 42
25 30
26 30
27 30
28 18
29 48
30 30
31 30
32 30
33 66
34 36
35 48
36 24
37 30
38 12
39 54
40 42
41 78
42 54
43 60
44 42
45 48
46 60
47 104
48 72
49 30
50 66
51 60
52 66
53 30
54 60
55 30
56 12
57 6
58 30
59 120
60 90
61 60
62 60
63 78
64 60
65 102
66 90
67 90
68 138
69 108
70 36

List of values

[1, 2, 2, 4, 6, 6, 8, 6, 6, 14, 18, 12, 12, 18, 12, 18, 24, 30, 34, 30, 6, 12, 42, 30, 30, 30, 18, 48, 30, 30, 30, 66, 36, 48, 24, 30, 12, 54, 42, 78, 54, 60, 42, 48, 60, 104, 72, 30, 66, 60, 66, 30, 60, 30, 12, 6, 30, 120, 90, 60, 60, 78, 60, 102, 90, 90, 138, 108, 36]

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