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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.

A167184 Smallest prime power >= n that is not prime.

Table of values

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

List of values

[1, 4, 4, 4, 8, 8, 8, 8, 9, 16, 16, 16, 16, 16, 16, 16, 25, 25, 25, 25, 25, 25, 25, 25, 25, 27, 27, 32, 32, 32, 32, 32, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 81, 81, 81, 81, 81, 81, 81, 81]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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