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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.

A053672 Least number coprime to n, n+1, n+2 and n+3.

Table of values

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

List of values

[5, 7, 7, 11, 11, 5, 11, 7, 7, 7, 5, 11, 11, 11, 7, 5, 7, 11, 13, 13, 5, 7, 7, 7, 11, 5, 11, 11, 7, 7, 5, 13, 13, 11, 11, 5, 7, 7, 11, 11, 5, 13, 7, 7, 7, 5, 11, 11, 11, 7, 5, 7, 13, 13, 13, 5, 7, 7, 7, 11, 5, 11, 17, 7, 7, 5, 11, 11, 11, 11, 5, 7, 7, 13, 17, 5, 17, 7, 7, 7, 5, 11, 11, 11, 7]

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