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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.

A159200 Decimal expansion of Sum_{k >= 1} (1/(10^(4*k + 2) - 1)) - (1/(10^(2*k + 1) - 1)), negated.

Table of values

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

List of values

[0, 0, 1, 0, 1, 0, 1, 0, 2, 0, 1, 0, 1, 0, 3, 0, 1, 0, 1, 0, 3, 0, 1, 0, 2, 0, 3, 0, 1, 0, 1, 0, 3, 0, 3, 0, 1, 0, 3, 0, 1, 0, 1, 0, 5, 0, 1, 0, 2, 0, 3, 0, 1, 0, 3, 0, 3, 0, 1, 0, 1, 0, 5, 0, 3, 0, 1, 0, 3, 0, 1, 0, 1, 0, 5, 0, 3, 0, 1, 0, 4, 0, 1, 0, 3, 0, 3, 0, 1, 0, 3, 0, 3, 0, 3, 0, 1, 0, 5, 0]