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.

A073721 Numbers k such that PrimePi(k) divides sigma(k).

Table of values

n a(n)
1 2
2 3
3 5
4 6
5 7
6 14
7 15
8 21
9 29
10 38
11 44
12 57
13 66
14 78
15 92
16 94
17 95
18 106
19 108
20 114
21 116
22 118
23 120
24 133
25 154
26 174
27 177
28 182
29 188
30 232
31 255
32 300
33 304
34 305
35 349
36 351
37 359
38 413
39 417
40 418
41 468
42 488
43 506
44 526
45 595
46 615
47 629
48 688
49 872
50 945
51 954
52 1001
53 1002
54 1006
55 1011
56 1018

List of values

[2, 3, 5, 6, 7, 14, 15, 21, 29, 38, 44, 57, 66, 78, 92, 94, 95, 106, 108, 114, 116, 118, 120, 133, 154, 174, 177, 182, 188, 232, 255, 300, 304, 305, 349, 351, 359, 413, 417, 418, 468, 488, 506, 526, 595, 615, 629, 688, 872, 945, 954, 1001, 1002, 1006, 1011, 1018]