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.

A345381 Numbers with exactly 2 semiprime divisors.

Table of values

n a(n)
1 12
2 18
3 20
4 24
5 28
6 40
7 44
8 45
9 48
10 50
11 52
12 54
13 56
14 63
15 68
16 75
17 76
18 80
19 88
20 92
21 96
22 98
23 99
24 104
25 112
26 116
27 117
28 124
29 135
30 136
31 147
32 148
33 152
34 153
35 160
36 162
37 164
38 171
39 172
40 175
41 176
42 184
43 188
44 189
45 192
46 207
47 208
48 212
49 224
50 232
51 236
52 242
53 244
54 245
55 248
56 250
57 261
58 268
59 272
60 275

List of values

[12, 18, 20, 24, 28, 40, 44, 45, 48, 50, 52, 54, 56, 63, 68, 75, 76, 80, 88, 92, 96, 98, 99, 104, 112, 116, 117, 124, 135, 136, 147, 148, 152, 153, 160, 162, 164, 171, 172, 175, 176, 184, 188, 189, 192, 207, 208, 212, 224, 232, 236, 242, 244, 245, 248, 250, 261, 268, 272, 275]