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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.

A359290 Number of divisors of 4*n-2 of form 4*k+3.

Table of values

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

List of values

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

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