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.

A104424 Numbers n such that n, prime(n), prime(n)+n, prime(n)-n and prime(n)*n all lack the digit 4.

Table of values

n a(n)
1 1
2 2
3 3
4 5
5 6
6 8
7 10
8 22
9 23
10 26
11 27
12 28
13 29
14 31
15 39
16 57
17 58
18 62
19 66
20 112
21 120
22 122
23 125
24 126
25 129
26 130
27 131
28 135
29 137
30 139
31 152
32 153
33 178
34 182
35 183
36 192
37 196
38 210
39 211
40 212
41 213
42 216
43 220
44 221
45 222
46 250
47 280
48 285
49 286
50 287
51 291
52 293
53 295
54 299
55 300
56 303
57 305
58 306

List of values

[1, 2, 3, 5, 6, 8, 10, 22, 23, 26, 27, 28, 29, 31, 39, 57, 58, 62, 66, 112, 120, 122, 125, 126, 129, 130, 131, 135, 137, 139, 152, 153, 178, 182, 183, 192, 196, 210, 211, 212, 213, 216, 220, 221, 222, 250, 280, 285, 286, 287, 291, 293, 295, 299, 300, 303, 305, 306]

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

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