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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.

A217663 a(n) = A217662(n+2)/A217662(n) - 1, n > 0.

Table of values

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

List of values

[1, 3, 1, 5, 3, 7, 1, 3, 5, 11, 1, 13, 7, 5, 1, 17, 3, 19, 5, 1, 11, 23, 1, 5, 13, 1, 1, 29, 5, 31, 1, 11, 17, 1, 1, 37, 19, 13, 1, 41, 1, 43, 11, 1, 23, 47, 1, 1, 5, 17, 13, 53, 1, 1, 1, 1, 29, 59, 1, 61, 31, 1, 1, 13, 11, 67, 17, 23, 1, 71, 1, 73, 37, 1, 1]

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