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.

A380457 Sum of divisors of n plus the number of distinct prime divisors of n: a(n) = sigma(n) + omega(n).

Table of values

n a(n)
1 1
2 4
3 5
4 8
5 7
6 14
7 9
8 16
9 14
10 20
11 13
12 30
13 15
14 26
15 26
16 32
17 19
18 41
19 21
20 44
21 34
22 38
23 25
24 62
25 32
26 44
27 41
28 58
29 31
30 75
31 33
32 64
33 50
34 56
35 50
36 93
37 39
38 62
39 58
40 92
41 43
42 99
43 45
44 86
45 80
46 74
47 49
48 126
49 58
50 95
51 74
52 100
53 55
54 122
55 74
56 122
57 82
58 92
59 61
60 171
61 63
62 98
63 106
64 128
65 86
66 147
67 69
68 128
69 98
70 147
71 73
72 197
73 75
74 116
75 126
76 142
77 98
78 171
79 81
80 188
81 122
82 128
83 85
84 227
85 110
86 134
87 122

List of values

[1, 4, 5, 8, 7, 14, 9, 16, 14, 20, 13, 30, 15, 26, 26, 32, 19, 41, 21, 44, 34, 38, 25, 62, 32, 44, 41, 58, 31, 75, 33, 64, 50, 56, 50, 93, 39, 62, 58, 92, 43, 99, 45, 86, 80, 74, 49, 126, 58, 95, 74, 100, 55, 122, 74, 122, 82, 92, 61, 171, 63, 98, 106, 128, 86, 147, 69, 128, 98, 147, 73, 197, 75, 116, 126, 142, 98, 171, 81, 188, 122, 128, 85, 227, 110, 134, 122]