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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.

A261025 Decimal expansion of Cl_2(Pi/4), where Cl_2 is the Clausen function of order 2.

Table of values

n a(n)
0 9
1 8
2 1
3 8
4 7
5 2
6 1
7 5
8 1
9 0
10 5
11 0
12 2
13 0
14 3
15 3
16 5
17 6
18 7
19 1
20 7
21 9
22 2
23 4
24 5
25 4
26 3
27 0
28 6
29 0
30 1
31 9
32 5
33 6
34 6
35 7
36 1
37 3
38 0
39 7
40 9
41 0
42 9
43 7
44 1
45 6
46 6
47 0
48 7
49 3
50 0
51 4
52 6
53 1
54 5
55 7
56 6
57 6
58 1
59 3
60 1
61 3
62 4
63 6
64 5
65 3
66 1
67 5
68 5
69 6
70 6
71 5
72 0
73 4
74 9
75 7
76 6
77 9
78 6
79 3
80 6
81 2
82 2
83 4
84 9
85 0
86 2
87 8
88 0
89 2
90 8
91 8
92 4
93 3
94 8
95 7
96 7
97 2
98 4
99 1
100 2
101 3
102 9
103 9
104 6

List of values

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