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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.

A168456 a(n) = (10*n - 5*(-1)^n + 1)/2.

Table of values

n a(n)
1 8
2 8
3 18
4 18
5 28
6 28
7 38
8 38
9 48
10 48
11 58
12 58
13 68
14 68
15 78
16 78
17 88
18 88
19 98
20 98
21 108
22 108
23 118
24 118
25 128
26 128
27 138
28 138
29 148
30 148
31 158
32 158
33 168
34 168
35 178
36 178
37 188
38 188
39 198
40 198
41 208
42 208
43 218
44 218
45 228
46 228
47 238
48 238
49 248
50 248
51 258
52 258
53 268
54 268
55 278
56 278
57 288

List of values

[8, 8, 18, 18, 28, 28, 38, 38, 48, 48, 58, 58, 68, 68, 78, 78, 88, 88, 98, 98, 108, 108, 118, 118, 128, 128, 138, 138, 148, 148, 158, 158, 168, 168, 178, 178, 188, 188, 198, 198, 208, 208, 218, 218, 228, 228, 238, 238, 248, 248, 258, 258, 268, 268, 278, 278, 288]

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

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