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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.

A308022 a(n) = prevprime(2*n-1) - nextprime(n-1), where prevprime = A151799 and nextprime = A151800.

Table of values

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

List of values

[0, 0, 0, 2, 0, 4, 2, 2, 6, 8, 6, 10, 6, 6, 12, 14, 12, 12, 14, 14, 18, 20, 14, 18, 18, 18, 24, 24, 22, 28, 24, 24, 24, 30, 30, 34, 32, 32, 32, 38, 36, 40, 36, 36, 42, 42, 36, 36, 44, 44, 48, 50, 44, 48, 50, 50, 54, 54, 52, 52, 46, 46, 46, 60, 60, 64, 60, 60]

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

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