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.

A166160 a(n) = (n-th odd prime + n-th odd nonprime)/2 - 1.

Table of values

n a(n)
1 1
2 6
3 10
4 15
5 18
6 21
7 25
8 28
9 33
10 37
11 42
12 45
13 48
14 51
15 57
16 61
17 64
18 70
19 73
20 76
21 81
22 84
23 89
24 94
25 97
26 100
27 105
28 109
29 113
30 121
31 124
32 128
33 130
34 136
35 139
36 144
37 148
38 153
39 157
40 161
41 163
42 171
43 173
44 177
45 179
46 187
47 195
48 198
49 201
50 204
51 210
52 212
53 218
54 222
55 228
56 234
57 236
58 240
59 243

List of values

[1, 6, 10, 15, 18, 21, 25, 28, 33, 37, 42, 45, 48, 51, 57, 61, 64, 70, 73, 76, 81, 84, 89, 94, 97, 100, 105, 109, 113, 121, 124, 128, 130, 136, 139, 144, 148, 153, 157, 161, 163, 171, 173, 177, 179, 187, 195, 198, 201, 204, 210, 212, 218, 222, 228, 234, 236, 240, 243]