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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.

A271774 a(1) = 1, then a(n) is the maximum of all 0 < m < n for which a(m) divides n.

Table of values

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

List of values

[1, 1, 2, 3, 2, 5, 2, 7, 4, 7, 2, 11, 2, 13, 6, 13, 2, 17, 2, 19, 10, 19, 2, 23, 6, 23, 4, 27, 2, 29, 2, 31, 12, 31, 10, 33, 2, 37, 16, 37, 2, 41, 2, 43, 6, 43, 2, 47, 10, 49, 18, 47, 2, 53, 12, 53, 22, 53, 2, 59, 2, 61, 10, 61, 16, 61, 2, 67, 26, 67, 2, 71, 2]

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