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.

A050704 Composite numbers k with the property that k minus the sum of the prime factors of k is prime.

Table of values

n a(n)
1 8
2 9
3 10
4 12
5 14
6 15
7 20
8 21
9 26
10 28
11 33
12 35
13 38
14 39
15 40
16 44
17 48
18 51
19 54
20 56
21 62
22 65
23 68
24 69
25 76
26 77
27 80
28 86
29 88
30 91
31 93
32 95
33 96
34 111
35 112
36 116
37 122
38 123
39 124
40 129
41 133
42 136
43 146
44 148
45 152
46 159
47 161
48 176
49 188
50 189
51 198
52 201
53 203
54 206
55 209
56 210
57 213
58 215
59 217
60 218

List of values

[8, 9, 10, 12, 14, 15, 20, 21, 26, 28, 33, 35, 38, 39, 40, 44, 48, 51, 54, 56, 62, 65, 68, 69, 76, 77, 80, 86, 88, 91, 93, 95, 96, 111, 112, 116, 122, 123, 124, 129, 133, 136, 146, 148, 152, 159, 161, 176, 188, 189, 198, 201, 203, 206, 209, 210, 213, 215, 217, 218]

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

Content is available under The OEIS End-User License Agreement.