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.

A072874 Numbers k such that A000213(k) == 1 (mod k).

Table of values

n a(n)
1 1
2 2
3 4
4 8
5 16
6 24
7 28
8 32
9 36
10 47
11 53
12 56
13 64
14 72
15 80
16 94
17 103
18 106
19 128
20 163
21 192
22 199
23 206
24 256
25 257
26 269
27 311
28 326
29 336
30 384
31 397
32 398
33 401
34 419
35 421
36 456
37 499
38 512
39 514
40 536
41 538
42 587
43 599
44 617
45 622
46 683
47 700
48 757
49 768
50 773
51 794
52 802
53 838
54 842
55 863
56 883
57 907

List of values

[1, 2, 4, 8, 16, 24, 28, 32, 36, 47, 53, 56, 64, 72, 80, 94, 103, 106, 128, 163, 192, 199, 206, 256, 257, 269, 311, 326, 336, 384, 397, 398, 401, 419, 421, 456, 499, 512, 514, 536, 538, 587, 599, 617, 622, 683, 700, 757, 768, 773, 794, 802, 838, 842, 863, 883, 907]