cp's OEIS Frontend

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.

A024821 Least m such that if r and s in {1/sqrt(h): h = 1,2,...,n} satisfy r < s, then r < k/m < s for some integer k.

Table of values

n a(n)
2 4
3 5
4 9
5 11
6 17
7 21
8 25
9 32
10 40
11 43
12 55
13 61
14 67
15 73
16 87
17 94
18 105
19 113
20 125
21 137
22 145
23 153
24 166
25 179
26 188
27 202
28 216
29 226
30 246
31 256
32 271
33 281
34 297
35 307
36 329
37 340
38 351
39 368
40 385
41 403
42 421
43 439
44 451
45 469
46 481
47 500
48 519
49 538
50 551
51 564
52 584
53 604
54 624
55 645
56 666
57 687
58 708
59 722
60 743

List of values

[4, 5, 9, 11, 17, 21, 25, 32, 40, 43, 55, 61, 67, 73, 87, 94, 105, 113, 125, 137, 145, 153, 166, 179, 188, 202, 216, 226, 246, 256, 271, 281, 297, 307, 329, 340, 351, 368, 385, 403, 421, 439, 451, 469, 481, 500, 519, 538, 551, 564, 584, 604, 624, 645, 666, 687, 708, 722, 743]