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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.

A309036 a(n) = gcd(A007504(n), A014285(n)).

Table of values

n a(n)
1 2
2 1
3 1
4 17
5 2
6 1
7 1
8 7
9 2
10 1
11 1
12 1
13 2
14 1
15 1
16 3
17 4
18 1
19 1
20 3
21 8
22 1
23 1
24 1
25 20
26 43
27 1
28 3
29 4
30 1
31 1
32 1
33 28
34 1
35 1
36 3
37 2
38 1
39 1
40 1
41 2
42 3
43 107
44 1
45 4
46 1
47 1
48 1
49 2
50 7
51 1
52 1
53 10
54 3
55 1
56 1
57 30
58 1
59 1
60 1
61 2
62 5
63 1
64 1
65 2
66 1
67 1
68 3
69 2
70 1
71 1
72 1
73 2
74 1
75 1
76 1
77 142
78 1
79 1
80 3
81 4
82 1
83 1
84 11
85 2
86 1
87 1
88 1
89 10

List of values

[2, 1, 1, 17, 2, 1, 1, 7, 2, 1, 1, 1, 2, 1, 1, 3, 4, 1, 1, 3, 8, 1, 1, 1, 20, 43, 1, 3, 4, 1, 1, 1, 28, 1, 1, 3, 2, 1, 1, 1, 2, 3, 107, 1, 4, 1, 1, 1, 2, 7, 1, 1, 10, 3, 1, 1, 30, 1, 1, 1, 2, 5, 1, 1, 2, 1, 1, 3, 2, 1, 1, 1, 2, 1, 1, 1, 142, 1, 1, 3, 4, 1, 1, 11, 2, 1, 1, 1, 10]

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