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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.

A193574 Smallest divisor of sigma(n) that does not divide n.

Table of values

n a(n)
2 3
3 2
4 7
5 2
6 4
7 2
8 3
9 13
10 3
11 2
12 7
13 2
14 3
15 2
16 31
17 2
18 13
19 2
20 3
21 2
22 3
23 2
24 5
25 31
26 3
27 2
28 8
29 2
30 4
31 2
32 3
33 2
34 3
35 2
36 7
37 2
38 3
39 2
40 3
41 2
42 4
43 2
44 3
45 2
46 3
47 2
48 31
49 3
50 3
51 2
52 7
53 2
54 4
55 2
56 3
57 2
58 3
59 2
60 7
61 2
62 3
63 2
64 127
65 2
66 4
67 2
68 3
69 2
70 3
71 2
72 5
73 2
74 3
75 2
76 5
77 2
78 4
79 2
80 3

List of values

[3, 2, 7, 2, 4, 2, 3, 13, 3, 2, 7, 2, 3, 2, 31, 2, 13, 2, 3, 2, 3, 2, 5, 31, 3, 2, 8, 2, 4, 2, 3, 2, 3, 2, 7, 2, 3, 2, 3, 2, 4, 2, 3, 2, 3, 2, 31, 3, 3, 2, 7, 2, 4, 2, 3, 2, 3, 2, 7, 2, 3, 2, 127, 2, 4, 2, 3, 2, 3, 2, 5, 2, 3, 2, 5, 2, 4, 2, 3]

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