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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.

A086155 a(n) is the number of primes between the primes p = A020483(n) and q = 2n + A020483(n).

Table of values

n a(n)
1 0
2 1
3 1
4 2
5 3
6 3
7 4
8 5
9 5
10 6
11 5
12 6
13 7
14 8
15 7
16 8
17 9
18 9
19 10
20 11
21 11
22 12
23 11
24 12
25 13
26 12
27 13
28 14
29 15
30 14
31 15
32 16
33 16
34 17
35 18
36 17
37 18
38 19
39 19
40 20
41 19
42 20
43 21
44 19
45 20
46 21
47 22
48 22
49 23
50 24
51 24
52 25
53 26
54 26
55 27
56 23
57 24
58 25
59 25
60 26
61 27
62 28
63 28
64 29
65 28
66 29
67 30
68 31
69 29
70 30
71 30
72 31
73 32
74 33
75 32

List of values

[0, 1, 1, 2, 3, 3, 4, 5, 5, 6, 5, 6, 7, 8, 7, 8, 9, 9, 10, 11, 11, 12, 11, 12, 13, 12, 13, 14, 15, 14, 15, 16, 16, 17, 18, 17, 18, 19, 19, 20, 19, 20, 21, 19, 20, 21, 22, 22, 23, 24, 24, 25, 26, 26, 27, 23, 24, 25, 25, 26, 27, 28, 28, 29, 28, 29, 30, 31, 29, 30, 30, 31, 32, 33, 32]

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

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