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.

A180117 Numbers n such that n and n+2 are both divisible by exactly 3 primes (counted with multiplicity).

Table of values

n a(n)
1 18
2 28
3 42
4 50
5 66
6 68
7 76
8 114
9 170
10 172
11 186
12 188
13 236
14 242
15 244
16 266
17 273
18 282
19 284
20 290
21 316
22 343
23 354
24 385
25 402
26 404
27 410
28 423
29 426
30 428
31 434
32 436
33 475
34 506
35 596
36 602
37 603
38 604
39 637
40 652
41 663
42 668
43 722
44 762
45 775
46 786
47 788
48 845
49 890
50 892
51 906
52 925
53 962

List of values

[18, 28, 42, 50, 66, 68, 76, 114, 170, 172, 186, 188, 236, 242, 244, 266, 273, 282, 284, 290, 316, 343, 354, 385, 402, 404, 410, 423, 426, 428, 434, 436, 475, 506, 596, 602, 603, 604, 637, 652, 663, 668, 722, 762, 775, 786, 788, 845, 890, 892, 906, 925, 962]