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.

A304251 If n = Product (p_j^k_j) then a(n) = Sum (prime(p_j)^k_j).

Table of values

n a(n)
1 0
2 3
3 5
4 9
5 11
6 8
7 17
8 27
9 25
10 14
11 31
12 14
13 41
14 20
15 16
16 81
17 59
18 28
19 67
20 20
21 22
22 34
23 83
24 32
25 121
26 44
27 125
28 26
29 109
30 19
31 127
32 243
33 36
34 62
35 28
36 34
37 157
38 70
39 46
40 38
41 179
42 25
43 191
44 40
45 36
46 86
47 211
48 86
49 289
50 124
51 64
52 50
53 241
54 128
55 42
56 44
57 72
58 112
59 277
60 25
61 283
62 130
63 42
64 729
65 52
66 39
67 331
68 68
69 88
70 31

List of values

[0, 3, 5, 9, 11, 8, 17, 27, 25, 14, 31, 14, 41, 20, 16, 81, 59, 28, 67, 20, 22, 34, 83, 32, 121, 44, 125, 26, 109, 19, 127, 243, 36, 62, 28, 34, 157, 70, 46, 38, 179, 25, 191, 40, 36, 86, 211, 86, 289, 124, 64, 50, 241, 128, 42, 44, 72, 112, 277, 25, 283, 130, 42, 729, 52, 39, 331, 68, 88, 31]