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.

A168277 a(n) = 2*n - (-1)^n - 2.

Table of values

n a(n)
1 1
2 1
3 5
4 5
5 9
6 9
7 13
8 13
9 17
10 17
11 21
12 21
13 25
14 25
15 29
16 29
17 33
18 33
19 37
20 37
21 41
22 41
23 45
24 45
25 49
26 49
27 53
28 53
29 57
30 57
31 61
32 61
33 65
34 65
35 69
36 69
37 73
38 73
39 77
40 77
41 81
42 81
43 85
44 85
45 89
46 89
47 93
48 93
49 97
50 97
51 101
52 101
53 105
54 105
55 109
56 109
57 113
58 113
59 117
60 117
61 121
62 121
63 125
64 125
65 129
66 129

List of values

[1, 1, 5, 5, 9, 9, 13, 13, 17, 17, 21, 21, 25, 25, 29, 29, 33, 33, 37, 37, 41, 41, 45, 45, 49, 49, 53, 53, 57, 57, 61, 61, 65, 65, 69, 69, 73, 73, 77, 77, 81, 81, 85, 85, 89, 89, 93, 93, 97, 97, 101, 101, 105, 105, 109, 109, 113, 113, 117, 117, 121, 121, 125, 125, 129, 129]