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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.

A210502 a(1) = 1, a(n) = A210501(n) - 1.

Table of values

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

List of values

[1, 0, 0, 1, 0, 1, 0, 1, 0, 0, 0, 2, 2, 1, 0, 0, 0, 3, 0, 0, 5, 0, 0, 1, 3, 1, 0, 0, 3, 1, 0, 0, 0, 0, 0, 0, 2, 1, 0, 0, 0, 4, 0, 3, 0, 0, 0, 0, 0, 0, 1, 0, 9, 0, 0, 0, 0, 0, 3, 2, 0, 0, 0, 0, 5, 0, 0, 4, 0, 2, 2, 0, 0, 0, 0, 0, 0, 5, 3, 1, 0, 5, 0, 10, 0, 0, 2]

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