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.

A328028 Nonprime numbers n whose proper divisors (greater than 1 and less than n) have no consecutive divisibilities.

Table of values

n a(n)
1 1
2 4
3 6
4 9
5 10
6 12
7 14
8 15
9 21
10 22
11 24
12 25
13 26
14 30
15 33
16 34
17 35
18 36
19 38
20 39
21 45
22 46
23 48
24 49
25 51
26 55
27 57
28 58
29 60
30 62
31 63
32 65
33 69
34 70
35 72
36 74
37 77
38 82
39 84
40 85
41 86
42 87
43 90
44 91
45 93
46 94
47 95
48 96
49 105
50 106
51 108
52 111
53 115
54 118
55 119
56 120
57 121
58 122
59 123
60 129
61 132
62 133
63 134

List of values

[1, 4, 6, 9, 10, 12, 14, 15, 21, 22, 24, 25, 26, 30, 33, 34, 35, 36, 38, 39, 45, 46, 48, 49, 51, 55, 57, 58, 60, 62, 63, 65, 69, 70, 72, 74, 77, 82, 84, 85, 86, 87, 90, 91, 93, 94, 95, 96, 105, 106, 108, 111, 115, 118, 119, 120, 121, 122, 123, 129, 132, 133, 134]