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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.

A359240 Number of divisors of 4*n-3 of form 4*k+3.

Table of values

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

List of values

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

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