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.

A074791 Numbers k such that k does not divide the denominator of the k-th harmonic number.

Table of values

n a(n)
1 6
2 18
3 20
4 21
5 33
6 42
7 54
8 63
9 66
10 77
11 100
12 110
13 120
14 156
15 162
16 189
17 198
18 272
19 294
20 336
21 342
22 363
23 377
24 435
25 486
26 500
27 506
28 559
29 567
30 594
31 600
32 610
33 629
34 685
35 703
36 812
37 847
38 880
39 924
40 930
41 957
42 1067
43 1166
44 1210
45 1243
46 1247
47 1287
48 1320
49 1332
50 1458
51 1590
52 1640

List of values

[6, 18, 20, 21, 33, 42, 54, 63, 66, 77, 100, 110, 120, 156, 162, 189, 198, 272, 294, 336, 342, 363, 377, 435, 486, 500, 506, 559, 567, 594, 600, 610, 629, 685, 703, 812, 847, 880, 924, 930, 957, 1067, 1166, 1210, 1243, 1247, 1287, 1320, 1332, 1458, 1590, 1640]