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A002172 Glaisher's chi numbers chi(p) for p a prime of the form 4m+1.

Table of values

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

List of values

[-2, 6, 2, -10, -2, 10, 14, -10, -6, 10, 18, -2, 6, -14, -22, 14, 22, -26, -18, -14, -2, 30, 26, -30, 2, -26, -18, 10, -34, 26, 22, 18, -10, 34, 14, -34, 38, 2, -6, 30, 34, -14, 42, 38, -10, -22, -42, 38, 26, 2, -46, 10, -34, -38, 50, -26, -50, -46, -2, -10, 30, 54, -18, -38, 50, -34, 22, 10, -50, 54, 46, 58, -58, 50]

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