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.

A280729 (p-1)/2 + phi(p-1) as p runs through the odd primes.

Table of values

n a(n)
1 2
2 4
3 5
4 9
5 10
6 16
7 15
8 21
9 26
10 23
11 30
12 36
13 33
14 45
15 50
16 57
17 46
18 53
19 59
20 60
21 63
22 81
23 84
24 80
25 90
26 83
27 105
28 90
29 104
30 99
31 113
32 132
33 113
34 146
35 115
36 126
37 135
38 165
39 170
40 177
41 138
42 167
43 160
44 182
45 159
46 153
47 183
48 225
49 186
50 228
51 215
52 184
53 225
54 256
55 261
56 266
57 207
58 226
59 236
60 233

List of values

[2, 4, 5, 9, 10, 16, 15, 21, 26, 23, 30, 36, 33, 45, 50, 57, 46, 53, 59, 60, 63, 81, 84, 80, 90, 83, 105, 90, 104, 99, 113, 132, 113, 146, 115, 126, 135, 165, 170, 177, 138, 167, 160, 182, 159, 153, 183, 225, 186, 228, 215, 184, 225, 256, 261, 266, 207, 226, 236, 233]