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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.

A097935 Number of primes that are not less than prime(n)-n and not greater than prime(n)+n.

Table of values

n a(n)
1 2
2 3
3 4
4 4
5 3
6 5
7 5
8 5
9 5
10 5
11 5
12 6
13 7
14 7
15 7
16 8
17 8
18 9
19 8
20 9
21 9
22 10
23 10
24 12
25 10
26 10
27 10
28 11
29 11
30 12
31 13
32 13
33 12
34 13
35 12
36 12
37 14
38 16
39 15
40 15
41 14
42 15
43 17
44 17
45 17
46 17
47 17
48 18
49 18
50 19
51 19
52 19
53 20
54 18
55 18
56 20
57 19
58 19
59 20
60 21
61 21
62 21
63 20
64 21
65 21
66 23
67 22
68 23
69 21
70 22
71 22
72 22
73 23
74 24
75 25

List of values

[2, 3, 4, 4, 3, 5, 5, 5, 5, 5, 5, 6, 7, 7, 7, 8, 8, 9, 8, 9, 9, 10, 10, 12, 10, 10, 10, 11, 11, 12, 13, 13, 12, 13, 12, 12, 14, 16, 15, 15, 14, 15, 17, 17, 17, 17, 17, 18, 18, 19, 19, 19, 20, 18, 18, 20, 19, 19, 20, 21, 21, 21, 20, 21, 21, 23, 22, 23, 21, 22, 22, 22, 23, 24, 25]

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