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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.

A152823 Largest divisor < n of n^2 + 1, a(1) = 1.

Table of values

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

List of values

[1, 1, 2, 1, 2, 1, 5, 5, 2, 1, 2, 5, 10, 1, 2, 1, 10, 13, 2, 1, 17, 5, 10, 1, 2, 1, 10, 5, 2, 17, 26, 25, 10, 13, 2, 1, 10, 17, 2, 1, 29, 5, 37, 13, 2, 29, 34, 5, 2, 41, 2, 5, 10, 1, 34, 1, 50, 5, 2, 13, 2, 5, 10, 17, 2, 1, 10, 37, 2, 29, 2, 61, 65, 1, 58, 53, 10, 5, 2, 37, 34, 25, 65, 1, 2, 13]

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