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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.

A065165 Permutation t->t+2 of Z, folded to N.

Table of values

n a(n)
1 4
2 6
3 2
4 8
5 1
6 10
7 3
8 12
9 5
10 14
11 7
12 16
13 9
14 18
15 11
16 20
17 13
18 22
19 15
20 24
21 17
22 26
23 19
24 28
25 21
26 30
27 23
28 32
29 25
30 34
31 27
32 36
33 29
34 38
35 31
36 40
37 33
38 42
39 35
40 44
41 37
42 46
43 39
44 48
45 41
46 50
47 43
48 52
49 45
50 54
51 47
52 56
53 49
54 58
55 51
56 60
57 53
58 62
59 55
60 64
61 57
62 66
63 59
64 68
65 61
66 70
67 63
68 72
69 65
70 74
71 67
72 76

List of values

[4, 6, 2, 8, 1, 10, 3, 12, 5, 14, 7, 16, 9, 18, 11, 20, 13, 22, 15, 24, 17, 26, 19, 28, 21, 30, 23, 32, 25, 34, 27, 36, 29, 38, 31, 40, 33, 42, 35, 44, 37, 46, 39, 48, 41, 50, 43, 52, 45, 54, 47, 56, 49, 58, 51, 60, 53, 62, 55, 64, 57, 66, 59, 68, 61, 70, 63, 72, 65, 74, 67, 76]

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