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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.

A253600 Smallest exponent k>1 such that n and n^k have some digits in common.

Table of values

n a(n)
0 2
1 2
2 5
3 5
4 3
5 2
6 2
7 5
8 5
9 3
10 2
11 2
12 2
13 2
14 2
15 2
16 2
17 3
18 3
19 2
20 2
21 2
22 4
23 2
24 3
25 2
26 2
27 2
28 2
29 3
30 2
31 2
32 2
33 3
34 3
35 2
36 2
37 2
38 3
39 3
40 2
41 2
42 2
43 2
44 3
45 2
46 2
47 4
48 2
49 2
50 2
51 2
52 2
53 5
54 3
55 2
56 2
57 3
58 3
59 3
60 2
61 2
62 3
63 2
64 2
65 2
66 2
67 3
68 2
69 2
70 2
71 2
72 3
73 2
74 2
75 2
76 2
77 5
78 2
79 3
80 2
81 2
82 2
83 2
84 3
85 2
86 2

List of values

[2, 2, 5, 5, 3, 2, 2, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 3, 3, 2, 2, 2, 4, 2, 3, 2, 2, 2, 2, 3, 2, 2, 2, 3, 3, 2, 2, 2, 3, 3, 2, 2, 2, 2, 3, 2, 2, 4, 2, 2, 2, 2, 2, 5, 3, 2, 2, 3, 3, 3, 2, 2, 3, 2, 2, 2, 2, 3, 2, 2, 2, 2, 3, 2, 2, 2, 2, 5, 2, 3, 2, 2, 2, 2, 3, 2, 2]

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