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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.

A112080 a(n) = difference between Jacobi-first-non-one(24n+1) and Jacobi-first-non-one(24n-1).

Table of values

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

List of values

[0, 2, -2, 0, 4, 0, 8, -2, 0, 0, 0, 12, -6, 0, 12, 0, 2, -2, 0, -6, 0, 18, -6, 0, 0, 0, 2, -6, 0, -4, 0, 2, -2, 0, 18, 0, 2, -2, 0, 24, 0, 6, -2, 0, 0, 0, 6, -8, 0, 4, 0, 2, -2, 0, -6, 0, 32, -6, 0, 0, 0, 2, -6, 0, -10, 0, 2, -2, 0, 28, 0, 2, -2, 0, 4, 0, 38, -2, 0, 0, 0, 6, -6, 0, 4, 0, 2]

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