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.

A257219 Numbers that have at least one divisor containing the digit 2 in base 10.

Table of values

n a(n)
1 2
2 4
3 6
4 8
5 10
6 12
7 14
8 16
9 18
10 20
11 21
12 22
13 23
14 24
15 25
16 26
17 27
18 28
19 29
20 30
21 32
22 34
23 36
24 38
25 40
26 42
27 44
28 46
29 48
30 50
31 52
32 54
33 56
34 58
35 60
36 62
37 63
38 64
39 66
40 68
41 69
42 70
43 72
44 74
45 75
46 76
47 78
48 80
49 81
50 82
51 84
52 86
53 87
54 88
55 90
56 92
57 94
58 96
59 98
60 100
61 102
62 104
63 105
64 106
65 108

List of values

[2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 63, 64, 66, 68, 69, 70, 72, 74, 75, 76, 78, 80, 81, 82, 84, 86, 87, 88, 90, 92, 94, 96, 98, 100, 102, 104, 105, 106, 108]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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