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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.

A008335 Number of distinct primes dividing p+1 as p runs through the primes.

Table of values

n a(n)
1 1
2 1
3 2
4 1
5 2
6 2
7 2
8 2
9 2
10 3
11 1
12 2
13 3
14 2
15 2
16 2
17 3
18 2
19 2
20 2
21 2
22 2
23 3
24 3
25 2
26 3
27 2
28 2
29 3
30 3
31 1
32 3
33 3
34 3
35 3
36 2
37 2
38 2
39 3
40 3
41 3
42 3
43 2
44 2
45 3
46 2
47 2
48 2
49 3
50 3
51 3
52 3
53 2
54 3
55 3
56 3
57 3
58 2
59 2
60 3
61 2
62 3
63 3
64 3
65 2
66 3
67 2
68 2
69 3
70 3
71 3
72 3
73 2
74 3
75 3
76 2
77 4
78 2
79 3
80 3
81 4
82 2
83 2
84 3
85 3
86 3
87 3
88 2
89 4
90 2
91 3
92 3
93 2
94 3
95 2

List of values

[1, 1, 2, 1, 2, 2, 2, 2, 2, 3, 1, 2, 3, 2, 2, 2, 3, 2, 2, 2, 2, 2, 3, 3, 2, 3, 2, 2, 3, 3, 1, 3, 3, 3, 3, 2, 2, 2, 3, 3, 3, 3, 2, 2, 3, 2, 2, 2, 3, 3, 3, 3, 2, 3, 3, 3, 3, 2, 2, 3, 2, 3, 3, 3, 2, 3, 2, 2, 3, 3, 3, 3, 2, 3, 3, 2, 4, 2, 3, 3, 4, 2, 2, 3, 3, 3, 3, 2, 4, 2, 3, 3, 2, 3, 2]

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