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.

A278373 Numbers of the form sigma(k) + phi(k) - 2k.

Table of values

n a(n)
1 0
2 1
3 2
4 3
5 4
6 6
7 7
8 8
9 9
10 10
11 12
12 13
13 14
14 15
15 16
16 17
17 18
18 20
19 22
20 24
21 25
22 26
23 28
24 29
25 30
26 31
27 32
28 34
29 36
30 37
31 38
32 40
33 41
34 42
35 44
36 46
37 48
38 49
39 50
40 52
41 54
42 56
43 57
44 58
45 60
46 61
47 62
48 63
49 64
50 65
51 66
52 68
53 70
54 72
55 73
56 74
57 75
58 76
59 77
60 78
61 80
62 82
63 84
64 85
65 86
66 88
67 89
68 90
69 91
70 92
71 93
72 94
73 96
74 97
75 98
76 100
77 102
78 104
79 106
80 108
81 109
82 110
83 111
84 112
85 114

List of values

[0, 1, 2, 3, 4, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 17, 18, 20, 22, 24, 25, 26, 28, 29, 30, 31, 32, 34, 36, 37, 38, 40, 41, 42, 44, 46, 48, 49, 50, 52, 54, 56, 57, 58, 60, 61, 62, 63, 64, 65, 66, 68, 70, 72, 73, 74, 75, 76, 77, 78, 80, 82, 84, 85, 86, 88, 89, 90, 91, 92, 93, 94, 96, 97, 98, 100, 102, 104, 106, 108, 109, 110, 111, 112, 114]