cp's OEIS Frontend

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.

A002175 Excess of number of divisors of 12n+1 of form 4k+1 over those of form 4k+3.

Table of values

n a(n)
0 1
1 2
2 3
3 2
4 1
5 2
6 2
7 4
8 2
9 2
10 1
11 0
12 4
13 2
14 3
15 2
16 2
17 4
18 0
19 2
20 2
21 0
22 4
23 2
24 3
25 0
26 2
27 6
28 2
29 2
30 1
31 2
32 0
33 2
34 2
35 2
36 2
37 4
38 2
39 0
40 4
41 4
42 4
43 0
44 1
45 2
46 0
47 4
48 2
49 0
50 2
51 2
52 5
53 2
54 0
55 2
56 2
57 4
58 4
59 2
60 0
61 2
62 4
63 2
64 2
65 0
66 4
67 0
68 0
69 2
70 3
71 2
72 4
73 2
74 0
75 4
76 0
77 6
78 2
79 4
80 1
81 0
82 4
83 2
84 2
85 2
86 2
87 0
88 0
89 2
90 0
91 2
92 8
93 2
94 2
95 0
96 2
97 4
98 0
99 4
100 2
101 2
102 3
103 2
104 2

List of values

[1, 2, 3, 2, 1, 2, 2, 4, 2, 2, 1, 0, 4, 2, 3, 2, 2, 4, 0, 2, 2, 0, 4, 2, 3, 0, 2, 6, 2, 2, 1, 2, 0, 2, 2, 2, 2, 4, 2, 0, 4, 4, 4, 0, 1, 2, 0, 4, 2, 0, 2, 2, 5, 2, 0, 2, 2, 4, 4, 2, 0, 2, 4, 2, 2, 0, 4, 0, 0, 2, 3, 2, 4, 2, 0, 4, 0, 6, 2, 4, 1, 0, 4, 2, 2, 2, 2, 0, 0, 2, 0, 2, 8, 2, 2, 0, 2, 4, 0, 4, 2, 2, 3, 2, 2]