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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.

A168381 a(n) = 4*n + 2*(-1)^n.

Table of values

n a(n)
1 2
2 10
3 10
4 18
5 18
6 26
7 26
8 34
9 34
10 42
11 42
12 50
13 50
14 58
15 58
16 66
17 66
18 74
19 74
20 82
21 82
22 90
23 90
24 98
25 98
26 106
27 106
28 114
29 114
30 122
31 122
32 130
33 130
34 138
35 138
36 146
37 146
38 154
39 154
40 162
41 162
42 170
43 170
44 178
45 178
46 186
47 186
48 194
49 194
50 202
51 202
52 210
53 210
54 218
55 218
56 226
57 226
58 234
59 234

List of values

[2, 10, 10, 18, 18, 26, 26, 34, 34, 42, 42, 50, 50, 58, 58, 66, 66, 74, 74, 82, 82, 90, 90, 98, 98, 106, 106, 114, 114, 122, 122, 130, 130, 138, 138, 146, 146, 154, 154, 162, 162, 170, 170, 178, 178, 186, 186, 194, 194, 202, 202, 210, 210, 218, 218, 226, 226, 234, 234]

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

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