cp's OEIS Frontend

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.

A143545 a(n) = n unless n is a prime, in which case a(n) = 2n.

Table of values

n a(n)
1 1
2 4
3 6
4 4
5 10
6 6
7 14
8 8
9 9
10 10
11 22
12 12
13 26
14 14
15 15
16 16
17 34
18 18
19 38
20 20
21 21
22 22
23 46
24 24
25 25
26 26
27 27
28 28
29 58
30 30
31 62
32 32
33 33
34 34
35 35
36 36
37 74
38 38
39 39
40 40
41 82
42 42
43 86
44 44
45 45
46 46
47 94
48 48
49 49
50 50
51 51
52 52
53 106
54 54
55 55
56 56
57 57
58 58
59 118
60 60
61 122
62 62
63 63
64 64
65 65
66 66
67 134
68 68
69 69
70 70
71 142

List of values

[1, 4, 6, 4, 10, 6, 14, 8, 9, 10, 22, 12, 26, 14, 15, 16, 34, 18, 38, 20, 21, 22, 46, 24, 25, 26, 27, 28, 58, 30, 62, 32, 33, 34, 35, 36, 74, 38, 39, 40, 82, 42, 86, 44, 45, 46, 94, 48, 49, 50, 51, 52, 106, 54, 55, 56, 57, 58, 118, 60, 122, 62, 63, 64, 65, 66, 134, 68, 69, 70, 142]

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

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