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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.

A359287 Number of divisors of 5*n-1 of form 5*k+2.

Table of values

n a(n)
1 1
2 0
3 2
4 0
5 2
6 0
7 2
8 0
9 2
10 1
11 2
12 0
13 2
14 0
15 2
16 0
17 4
18 0
19 2
20 0
21 2
22 0
23 2
24 2
25 2
26 0
27 2
28 0
29 3
30 0
31 4
32 0
33 2
34 0
35 2
36 0
37 2
38 2
39 2
40 0
41 4
42 0
43 2
44 0
45 4
46 0
47 2
48 0
49 2
50 0
51 2
52 2
53 4
54 0
55 2
56 0
57 2
58 1
59 4
60 0
61 2
62 0
63 2
64 0
65 4
66 2
67 2
68 0
69 2
70 0
71 2
72 0
73 4
74 0
75 4
76 0
77 4
78 0
79 2
80 2
81 2
82 0
83 2
84 0
85 2
86 0
87 4
88 0
89 4
90 0

List of values

[1, 0, 2, 0, 2, 0, 2, 0, 2, 1, 2, 0, 2, 0, 2, 0, 4, 0, 2, 0, 2, 0, 2, 2, 2, 0, 2, 0, 3, 0, 4, 0, 2, 0, 2, 0, 2, 2, 2, 0, 4, 0, 2, 0, 4, 0, 2, 0, 2, 0, 2, 2, 4, 0, 2, 0, 2, 1, 4, 0, 2, 0, 2, 0, 4, 2, 2, 0, 2, 0, 2, 0, 4, 0, 4, 0, 4, 0, 2, 2, 2, 0, 2, 0, 2, 0, 4, 0, 4, 0]

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