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.

A109067 3-almost primes of the form semiprime + 1.

Table of values

n a(n)
1 27
2 50
3 52
4 63
5 66
6 70
7 75
8 78
9 92
10 116
11 124
12 130
13 147
14 170
15 186
16 188
17 195
18 207
19 222
20 236
21 238
22 255
23 266
24 268
25 275
26 279
27 290
28 292
29 310
30 322
31 356
32 363
33 366
34 387
35 399
36 404
37 412
38 418
39 423
40 428
41 438
42 452
43 455
44 470
45 474
46 483
47 494
48 498
49 506
50 518
51 530
52 534
53 539
54 555

List of values

[27, 50, 52, 63, 66, 70, 75, 78, 92, 116, 124, 130, 147, 170, 186, 188, 195, 207, 222, 236, 238, 255, 266, 268, 275, 279, 290, 292, 310, 322, 356, 363, 366, 387, 399, 404, 412, 418, 423, 428, 438, 452, 455, 470, 474, 483, 494, 498, 506, 518, 530, 534, 539, 555]