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.

A136196 Numbers n such that n and n+2 are consecutive semiprimes.

Table of values

n a(n)
1 4
2 49
3 55
4 91
5 119
6 143
7 159
8 183
9 185
10 203
11 215
12 219
13 235
14 247
15 265
16 287
17 289
18 299
19 303
20 319
21 321
22 327
23 339
24 391
25 411
26 413
27 415
28 451
29 469
30 471
31 515
32 517
33 527
34 533
35 535
36 543
37 551
38 579
39 581
40 589
41 667
42 669
43 679
44 685
45 687
46 695
47 721
48 753
49 779
50 789
51 791
52 813
53 815

List of values

[4, 49, 55, 91, 119, 143, 159, 183, 185, 203, 215, 219, 235, 247, 265, 287, 289, 299, 303, 319, 321, 327, 339, 391, 411, 413, 415, 451, 469, 471, 515, 517, 527, 533, 535, 543, 551, 579, 581, 589, 667, 669, 679, 685, 687, 695, 721, 753, 779, 789, 791, 813, 815]