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.

A109133 Numbers k such that (sum of digits)*(number of digits) + 1 is prime.

Table of values

n a(n)
1 1
2 2
3 4
4 6
5 10
6 11
7 12
8 14
9 15
10 17
11 18
12 20
13 21
14 23
15 24
16 26
17 27
18 29
19 30
20 32
21 33
22 35
23 36
24 38
25 41
26 42
27 44
28 45
29 47
30 50
31 51
32 53
33 54
34 56
35 59
36 60
37 62
38 63
39 65
40 68
41 69
42 71
43 72
44 74
45 77
46 78
47 80
48 81
49 83
50 86
51 87
52 90
53 92
54 95
55 96
56 99
57 101
58 103
59 105
60 109
61 110
62 112
63 114
64 118
65 121
66 123
67 127

List of values

[1, 2, 4, 6, 10, 11, 12, 14, 15, 17, 18, 20, 21, 23, 24, 26, 27, 29, 30, 32, 33, 35, 36, 38, 41, 42, 44, 45, 47, 50, 51, 53, 54, 56, 59, 60, 62, 63, 65, 68, 69, 71, 72, 74, 77, 78, 80, 81, 83, 86, 87, 90, 92, 95, 96, 99, 101, 103, 105, 109, 110, 112, 114, 118, 121, 123, 127]

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

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