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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.

A316497 a(n) = gcd(A081939(n), A081939(n+1)).

Table of values

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

List of values

[2, 2, 2, 2, 11, 11, 11, 11, 11, 11, 11, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 13, 5, 7, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 22, 22, 22, 22, 22, 22, 22, 22, 22, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 22, 22, 22, 22, 22, 22, 22, 22, 22, 11, 55]

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