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.

A133795 a(n) = n-th semiprime + n-th non-semiprime.

Table of values

n a(n)
1 5
2 8
3 12
4 15
5 21
6 23
7 32
8 34
9 38
10 42
11 50
12 52
13 54
14 58
15 62
16 70
17 76
18 79
19 84
20 87
21 89
22 94
23 101
24 106
25 114
26 118
27 124
28 128
29 130
30 132
31 138
32 141
33 144
34 147
35 159
36 165
37 171
38 177
39 179
40 182
41 185
42 187
43 195
44 200
45 202
46 211
47 213
48 215
49 218
50 221
51 231
52 236
53 238
54 241
55 247
56 252
57 261

List of values

[5, 8, 12, 15, 21, 23, 32, 34, 38, 42, 50, 52, 54, 58, 62, 70, 76, 79, 84, 87, 89, 94, 101, 106, 114, 118, 124, 128, 130, 132, 138, 141, 144, 147, 159, 165, 171, 177, 179, 182, 185, 187, 195, 200, 202, 211, 213, 215, 218, 221, 231, 236, 238, 241, 247, 252, 261]