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.

A067013 Numbers with property that every permutation of digits (dropping any leading zeros) is 1 or a composite number.

Table of values

n a(n)
1 1
2 4
3 6
4 8
5 9
6 10
7 12
8 15
9 18
10 21
11 22
12 24
13 25
14 26
15 27
16 28
17 33
18 36
19 39
20 40
21 42
22 44
23 45
24 46
25 48
26 49
27 51
28 52
29 54
30 55
31 56
32 57
33 58
34 60
35 62
36 63
37 64
38 65
39 66
40 68
41 69
42 72
43 75
44 77
45 78
46 80
47 81
48 82
49 84
50 85
51 86
52 87
53 88
54 90
55 93
56 94
57 96
58 99
59 100
60 102
61 105
62 108
63 111
64 114
65 116
66 117
67 120
68 122

List of values

[1, 4, 6, 8, 9, 10, 12, 15, 18, 21, 22, 24, 25, 26, 27, 28, 33, 36, 39, 40, 42, 44, 45, 46, 48, 49, 51, 52, 54, 55, 56, 57, 58, 60, 62, 63, 64, 65, 66, 68, 69, 72, 75, 77, 78, 80, 81, 82, 84, 85, 86, 87, 88, 90, 93, 94, 96, 99, 100, 102, 105, 108, 111, 114, 116, 117, 120, 122]