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.

A227874 Numbers n such that tau(n+1) - tau(n) = -2, where tau(n) = the number of divisors of n (A000005).

Table of values

n a(n)
1 6
2 10
3 20
4 22
5 32
6 45
7 46
8 50
9 58
10 68
11 76
12 82
13 92
14 106
15 117
16 124
17 152
18 166
19 170
20 174
21 178
22 212
23 226
24 236
25 261
26 262
27 272
28 325
29 333
30 338
31 346
32 358
33 382
34 405
35 412
36 424
37 435
38 436
39 452
40 464
41 466
42 474
43 477
44 478
45 495
46 502
47 506
48 512
49 530
50 555
51 562
52 567
53 574
54 578
55 586

List of values

[6, 10, 20, 22, 32, 45, 46, 50, 58, 68, 76, 82, 92, 106, 117, 124, 152, 166, 170, 174, 178, 212, 226, 236, 261, 262, 272, 325, 333, 338, 346, 358, 382, 405, 412, 424, 435, 436, 452, 464, 466, 474, 477, 478, 495, 502, 506, 512, 530, 555, 562, 567, 574, 578, 586]