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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.

A276157 a(n) = {greatest primorial less than or equal to n} divided by {greatest primorial number which divides n} = A260188(n)/A053589(n).

Table of values

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

List of values

[1, 1, 2, 1, 2, 1, 6, 3, 6, 3, 6, 1, 6, 3, 6, 3, 6, 1, 6, 3, 6, 3, 6, 1, 6, 3, 6, 3, 6, 1, 30, 15, 30, 15, 30, 5, 30, 15, 30, 15, 30, 5, 30, 15, 30, 15, 30, 5, 30, 15, 30, 15, 30, 5, 30, 15, 30, 15, 30, 1, 30, 15, 30, 15, 30, 5, 30, 15, 30, 15, 30, 5, 30, 15, 30, 15, 30, 5, 30, 15, 30]

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