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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.

A356552 a(n) is the least base b > 1 where the sum of digits of n divides n.

Table of values

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

List of values

[2, 2, 3, 2, 5, 2, 7, 2, 3, 2, 11, 2, 13, 7, 3, 2, 17, 2, 19, 2, 2, 11, 23, 2, 3, 5, 3, 3, 29, 3, 31, 2, 3, 2, 3, 2, 37, 19, 3, 2, 41, 2, 43, 6, 3, 23, 47, 2, 7, 4, 5, 4, 53, 3, 2, 3, 3, 29, 59, 2, 61, 31, 3, 2, 3, 2, 67, 2, 2, 6, 71, 2, 73, 37, 3, 4, 3, 3, 79]

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