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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.

A062299 a(n) = floor(cot(Pi/(n+1))).

Table of values

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

List of values

[0, 0, 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4, 4, 5, 5, 5, 5, 6, 6, 6, 7, 7, 7, 8, 8, 8, 9, 9, 9, 10, 10, 10, 11, 11, 11, 12, 12, 12, 13, 13, 13, 13, 14, 14, 14, 15, 15, 15, 16, 16, 16, 17, 17, 17, 18, 18, 18, 19, 19, 19, 20, 20, 20, 20, 21, 21, 21, 22, 22, 22, 23, 23, 23, 24, 24, 24, 25, 25]

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