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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.

A284099 a(n) = Sum_{d|n, d == 1 (mod 7)} d.

Table of values

n a(n)
1 1
2 1
3 1
4 1
5 1
6 1
7 1
8 9
9 1
10 1
11 1
12 1
13 1
14 1
15 16
16 9
17 1
18 1
19 1
20 1
21 1
22 23
23 1
24 9
25 1
26 1
27 1
28 1
29 30
30 16
31 1
32 9
33 1
34 1
35 1
36 37
37 1
38 1
39 1
40 9
41 1
42 1
43 44
44 23
45 16
46 1
47 1
48 9
49 1
50 51
51 1
52 1
53 1
54 1
55 1
56 9
57 58
58 30
59 1
60 16
61 1
62 1
63 1
64 73
65 1
66 23
67 1
68 1
69 1
70 1
71 72
72 45
73 1
74 1
75 16
76 1
77 1
78 79
79 1
80 9
81 1
82 1

List of values

[1, 1, 1, 1, 1, 1, 1, 9, 1, 1, 1, 1, 1, 1, 16, 9, 1, 1, 1, 1, 1, 23, 1, 9, 1, 1, 1, 1, 30, 16, 1, 9, 1, 1, 1, 37, 1, 1, 1, 9, 1, 1, 44, 23, 16, 1, 1, 9, 1, 51, 1, 1, 1, 1, 1, 9, 58, 30, 1, 16, 1, 1, 1, 73, 1, 23, 1, 1, 1, 1, 72, 45, 1, 1, 16, 1, 1, 79, 1, 9, 1, 1]