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.

A137167 Semiprimes that do not contain any other semiprimes as a substring.

Table of values

n a(n)
1 4
2 6
3 9
4 10
5 15
6 21
7 22
8 25
9 33
10 35
11 38
12 51
13 55
14 57
15 58
16 77
17 82
18 85
19 87
20 111
21 118
22 123
23 178
24 183
25 201
26 202
27 203
28 205
29 237
30 278
31 301
32 302
33 303
34 305
35 323
36 327
37 371
38 501
39 502
40 505
41 527
42 537
43 703
44 707
45 713
46 717
47 718
48 723
49 731
50 737
51 753
52 781
53 802
54 803
55 807
56 813
57 817

List of values

[4, 6, 9, 10, 15, 21, 22, 25, 33, 35, 38, 51, 55, 57, 58, 77, 82, 85, 87, 111, 118, 123, 178, 183, 201, 202, 203, 205, 237, 278, 301, 302, 303, 305, 323, 327, 371, 501, 502, 505, 527, 537, 703, 707, 713, 717, 718, 723, 731, 737, 753, 781, 802, 803, 807, 813, 817]