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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.

A055035 Degree of minimal polynomial of sin(Pi/n) over the rationals.

Table of values

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

List of values

[1, 1, 2, 2, 4, 1, 6, 4, 6, 2, 10, 4, 12, 3, 8, 8, 16, 3, 18, 8, 12, 5, 22, 8, 20, 6, 18, 12, 28, 4, 30, 16, 20, 8, 24, 12, 36, 9, 24, 16, 40, 6, 42, 20, 24, 11, 46, 16, 42, 10, 32, 24, 52, 9, 40, 24, 36, 14, 58, 16, 60, 15, 36, 32, 48, 10, 66, 32, 44, 12, 70, 24, 72]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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