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.

A100915 Numbers n such that n plus n-th semiprime is semiprime.

Table of values

n a(n)
1 4
2 6
3 9
4 12
5 16
6 18
7 19
8 20
9 24
10 29
11 31
12 34
13 35
14 39
15 40
16 44
17 46
18 49
19 51
20 54
21 55
22 72
23 73
24 76
25 79
26 80
27 81
28 84
29 87
30 91
31 93
32 94
33 96
34 98
35 110
36 113
37 116
38 120
39 128
40 130
41 136
42 137
43 148
44 150
45 154
46 159
47 165
48 168
49 170
50 172
51 175
52 188
53 190
54 191
55 199
56 200
57 206
58 215
59 217
60 220
61 230

List of values

[4, 6, 9, 12, 16, 18, 19, 20, 24, 29, 31, 34, 35, 39, 40, 44, 46, 49, 51, 54, 55, 72, 73, 76, 79, 80, 81, 84, 87, 91, 93, 94, 96, 98, 110, 113, 116, 120, 128, 130, 136, 137, 148, 150, 154, 159, 165, 168, 170, 172, 175, 188, 190, 191, 199, 200, 206, 215, 217, 220, 230]