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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.

A201320 Decimal expansion of x satisfying 2*x^2 - 1 = cot(x) and 0 < x < Pi.

Table of values

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

List of values

[9, 3, 3, 0, 2, 7, 6, 7, 4, 6, 6, 6, 1, 7, 7, 2, 5, 5, 9, 0, 6, 8, 7, 9, 1, 3, 5, 6, 1, 3, 0, 5, 1, 0, 6, 5, 4, 1, 1, 9, 0, 4, 1, 2, 7, 1, 1, 1, 3, 6, 0, 9, 4, 0, 9, 5, 0, 9, 0, 2, 0, 6, 6, 2, 6, 0, 2, 2, 1, 7, 4, 7, 3, 3, 3, 4, 1, 4, 5, 0, 0, 9, 1, 1, 2, 2, 1, 6, 8, 9, 6, 9, 7, 3, 6, 3, 0, 7, 2]