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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.

A081725 A065560(n) + n - prime(n).

Table of values

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

List of values

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

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