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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.

A228359 Numbers n whose 10's complement is not prime, i.e., 10^k-n, where k is the number of digits of n, is not prime.

Table of values

n a(n)
1 1
2 2
3 4
4 6
5 9
6 10
7 12
8 13
9 14
10 15
11 16
12 18
13 19
14 20
15 22
16 23
17 24
18 25
19 26
20 28
21 30
22 31
23 32
24 34
25 35
26 36
27 37
28 38
29 40
30 42
31 43
32 44
33 45
34 46
35 48
36 49
37 50
38 51
39 52
40 54
41 55
42 56
43 58
44 60
45 61
46 62
47 64
48 65
49 66
50 67
51 68
52 70
53 72
54 73
55 74
56 75
57 76
58 78
59 79
60 80
61 82
62 84
63 85
64 86
65 88
66 90
67 91
68 92

List of values

[1, 2, 4, 6, 9, 10, 12, 13, 14, 15, 16, 18, 19, 20, 22, 23, 24, 25, 26, 28, 30, 31, 32, 34, 35, 36, 37, 38, 40, 42, 43, 44, 45, 46, 48, 49, 50, 51, 52, 54, 55, 56, 58, 60, 61, 62, 64, 65, 66, 67, 68, 70, 72, 73, 74, 75, 76, 78, 79, 80, 82, 84, 85, 86, 88, 90, 91, 92]

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

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