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.

A247394 Numbers n for which the third maximal prime <= sqrt(n) is the least prime divisor of n.

Table of values

n a(n)
1 26
2 28
3 30
4 32
5 34
6 36
7 38
8 40
9 42
10 44
11 46
12 48
13 51
14 57
15 63
16 69
17 75
18 81
19 87
20 93
21 99
22 105
23 111
24 117
25 125
26 145
27 155
28 203
29 217
30 259
31 287
32 319
33 341
34 377
35 403
36 481
37 629
38 697
39 731
40 799
41 893
42 989
43 1081
44 1219
45 1357
46 1537
47 1829
48 1961
49 2183
50 2419
51 2501
52 2747
53 2881
54 3053

List of values

[26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 51, 57, 63, 69, 75, 81, 87, 93, 99, 105, 111, 117, 125, 145, 155, 203, 217, 259, 287, 319, 341, 377, 403, 481, 629, 697, 731, 799, 893, 989, 1081, 1219, 1357, 1537, 1829, 1961, 2183, 2419, 2501, 2747, 2881, 3053]

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

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