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.

A074208 Least k > 1 such that n divides sigma(k) - k.

Table of values

n a(n)
1 2
2 6
3 4
4 9
5 14
6 6
7 8
8 10
9 15
10 14
11 20
12 24
13 27
14 22
15 16
16 12
17 39
18 24
19 48
20 34
21 18
22 20
23 52
24 90
25 40
26 46
27 42
28 28
29 68
30 78
31 32
32 56
33 45
34 62
35 84
36 24
37 70
38 48
39 66
40 44
41 63
42 30
43 50
44 82
45 78
46 52
47 116
48 90
49 75
50 40
51 132
52 96
53 80
54 42
55 36
56 106
57 99
58 68
59 148
60 120
61 130
62 118
63 64
64 56
65 117
66 54
67 136
68 112

List of values

[2, 6, 4, 9, 14, 6, 8, 10, 15, 14, 20, 24, 27, 22, 16, 12, 39, 24, 48, 34, 18, 20, 52, 90, 40, 46, 42, 28, 68, 78, 32, 56, 45, 62, 84, 24, 70, 48, 66, 44, 63, 30, 50, 82, 78, 52, 116, 90, 75, 40, 132, 96, 80, 42, 36, 106, 99, 68, 148, 120, 130, 118, 64, 56, 117, 54, 136, 112]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.