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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.

A195212 Numbers n for which the exponent of the largest prime factor of n is even.

Table of values

n a(n)
1 4
2 9
3 16
4 18
5 25
6 36
7 49
8 50
9 64
10 72
11 75
12 81
13 98
14 100
15 121
16 144
17 147
18 150
19 162
20 169
21 196
22 200
23 225
24 242
25 245
26 256
27 288
28 289
29 294
30 300
31 324
32 338
33 361
34 363
35 392
36 400
37 441
38 450
39 484
40 490
41 507
42 529
43 576
44 578
45 588
46 600
47 605
48 625
49 648
50 675
51 676
52 722
53 726
54 729
55 735

List of values

[4, 9, 16, 18, 25, 36, 49, 50, 64, 72, 75, 81, 98, 100, 121, 144, 147, 150, 162, 169, 196, 200, 225, 242, 245, 256, 288, 289, 294, 300, 324, 338, 361, 363, 392, 400, 441, 450, 484, 490, 507, 529, 576, 578, 588, 600, 605, 625, 648, 675, 676, 722, 726, 729, 735]