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.

A168280 (1 - 5*(-1)^n + 10*n)/4.

Table of values

n a(n)
1 4
2 4
3 9
4 9
5 14
6 14
7 19
8 19
9 24
10 24
11 29
12 29
13 34
14 34
15 39
16 39
17 44
18 44
19 49
20 49
21 54
22 54
23 59
24 59
25 64
26 64
27 69
28 69
29 74
30 74
31 79
32 79
33 84
34 84
35 89
36 89
37 94
38 94
39 99
40 99
41 104
42 104
43 109
44 109
45 114
46 114
47 119
48 119
49 124
50 124
51 129
52 129
53 134
54 134
55 139
56 139
57 144
58 144
59 149
60 149
61 154
62 154
63 159

List of values

[4, 4, 9, 9, 14, 14, 19, 19, 24, 24, 29, 29, 34, 34, 39, 39, 44, 44, 49, 49, 54, 54, 59, 59, 64, 64, 69, 69, 74, 74, 79, 79, 84, 84, 89, 89, 94, 94, 99, 99, 104, 104, 109, 109, 114, 114, 119, 119, 124, 124, 129, 129, 134, 134, 139, 139, 144, 144, 149, 149, 154, 154, 159]