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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.

A292685 Irregular table where row n lists the positive integers k not divisible by 10 such that f(kN) = f(N) for N = A292683(n) and f(x) = x / (x without its first digit: A217657(x)).

Table of values

n a(n)
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
9 9
10 1
11 2
12 3
13 4
14 1
15 1
16 2
17 3
18 4
19 5
20 15
21 25
22 35
23 45
24 1
25 2
26 3
27 4
28 5
29 15
30 25
31 35
32 45
33 1
34 2
35 5
36 15
37 1
38 5
39 15
40 1
41 2
42 3
43 1
44 2
45 3
46 1
47 2
48 3
49 1
50 1
51 1
52 2
53 5
54 15
55 25
56 75
57 125
58 175
59 225
60 1
61 2
62 5
63 15
64 25
65 75
66 125
67 175
68 225
69 1
70 2
71 5
72 15
73 25
74 75
75 125
76 175
77 225

List of values

[1, 2, 3, 4, 5, 6, 7, 8, 9, 1, 2, 3, 4, 1, 1, 2, 3, 4, 5, 15, 25, 35, 45, 1, 2, 3, 4, 5, 15, 25, 35, 45, 1, 2, 5, 15, 1, 5, 15, 1, 2, 3, 1, 2, 3, 1, 2, 3, 1, 1, 1, 2, 5, 15, 25, 75, 125, 175, 225, 1, 2, 5, 15, 25, 75, 125, 175, 225, 1, 2, 5, 15, 25, 75, 125, 175, 225]

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