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.

A182272 Starting with 1, smallest integer not yet in the sequence such that two neighboring digits in the sequence multiply to a composite.

Table of values

n a(n)
1 1
2 4
3 2
4 3
5 5
6 6
7 7
8 8
9 9
10 10
11 14
12 16
13 18
14 19
15 20
16 22
17 23
18 24
19 25
20 26
21 27
22 28
23 29
24 30
25 32
26 33
27 34
28 35
29 36
30 37
31 38
32 39
33 40
34 41
35 42
36 43
37 44
38 45
39 46
40 47
41 48
42 49
43 50
44 52
45 53
46 54
47 55
48 56
49 57
50 58
51 59
52 60
53 61
54 62
55 63
56 64
57 65
58 66
59 67
60 68
61 69
62 70
63 72
64 73
65 74
66 75
67 76

List of values

[1, 4, 2, 3, 5, 6, 7, 8, 9, 10, 14, 16, 18, 19, 20, 22, 23, 24, 25, 26, 27, 28, 29, 30, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 72, 73, 74, 75, 76]

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

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