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.

A261342 Numbers n such that either floor(n^(1/k)) or ceiling(n^(1/k)) divides n for all integers k >= 1.

Table of values

n a(n)
1 1
2 2
3 3
4 4
5 6
6 8
7 9
8 12
9 15
10 16
11 20
12 24
13 30
14 36
15 42
16 48
17 56
18 63
19 64
20 72
21 80
22 90
23 100
24 120
25 132
26 144
27 156
28 168
29 195
30 210
31 224
32 240
33 288
34 324
35 360
36 400
37 420
38 440
39 528
40 552
41 576
42 600
43 624
44 675
45 702
46 756
47 840
48 870
49 900
50 930
51 960
52 1056
53 1155
54 1260
55 1332
56 1368
57 1560
58 1680
59 1764
60 1848
61 1980
62 2352
63 2600
64 2704

List of values

[1, 2, 3, 4, 6, 8, 9, 12, 15, 16, 20, 24, 30, 36, 42, 48, 56, 63, 64, 72, 80, 90, 100, 120, 132, 144, 156, 168, 195, 210, 224, 240, 288, 324, 360, 400, 420, 440, 528, 552, 576, 600, 624, 675, 702, 756, 840, 870, 900, 930, 960, 1056, 1155, 1260, 1332, 1368, 1560, 1680, 1764, 1848, 1980, 2352, 2600, 2704]