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.

A139787 Semiprime lucky numbers.

Table of values

n a(n)
1 9
2 15
3 21
4 25
5 33
6 49
7 51
8 69
9 87
10 93
11 111
12 115
13 129
14 133
15 141
16 159
17 169
18 201
19 205
20 219
21 235
22 237
23 259
24 267
25 289
26 303
27 319
28 321
29 327
30 339
31 361
32 391
33 393
34 415
35 427
36 451
37 489
38 511
39 517
40 519
41 529
42 535
43 537
44 553
45 559
46 579
47 583
48 591
49 655
50 679
51 685
52 699
53 717

List of values

[9, 15, 21, 25, 33, 49, 51, 69, 87, 93, 111, 115, 129, 133, 141, 159, 169, 201, 205, 219, 235, 237, 259, 267, 289, 303, 319, 321, 327, 339, 361, 391, 393, 415, 427, 451, 489, 511, 517, 519, 529, 535, 537, 553, 559, 579, 583, 591, 655, 679, 685, 699, 717]