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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.

A316113 a(n) is the least sum of a tuple containing n as an element where the denominator of the sum of reciprocals isn't divisible by any of the prime factors of n.

Table of values

n a(n)
1 1
2 4
3 9
4 10
5 20
6 11
7 35
8 22
9 30
10 22
11 66
12 22
13 91
14 37
15 28
16 46
17 119
18 32
19 152
20 31
21 41
22 68
23 184
24 37
25 110
26 106
27 93
28 53
29 261
30 51
31 279
32 94
33 69
34 121
35 59
36 60
37 370
38 192
39 97
40 64
41 451
42 54
43 430
44 94
45 65
46 186
47 517
48 74
49 259
50 112
51 122
52 97
53 583
54 95
55 92
56 92
57 158
58 263
59 767
60 77
61 671

List of values

[1, 4, 9, 10, 20, 11, 35, 22, 30, 22, 66, 22, 91, 37, 28, 46, 119, 32, 152, 31, 41, 68, 184, 37, 110, 106, 93, 53, 261, 51, 279, 94, 69, 121, 59, 60, 370, 192, 97, 64, 451, 54, 430, 94, 65, 186, 517, 74, 259, 112, 122, 97, 583, 95, 92, 92, 158, 263, 767, 77, 671]