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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.

A067195 Numbers n such that M(n) = Sum_{i=1..n} mu(sigma(i)) where M(n) is the Mertens function A002321(n).

Table of values

n a(n)
1 1
2 2
3 4
4 30
5 33
6 38
7 42
8 45
9 47
10 48
11 57
12 59
13 60
14 64
15 66
16 69
17 77
18 82
19 85
20 104
21 106
22 118
23 121
24 194
25 196
26 201
27 285
28 287
29 288
30 290
31 465
32 467
33 468
34 470
35 499
36 500
37 510
38 610
39 614
40 626
41 628
42 631
43 632
44 642
45 718
46 723
47 724
48 785
49 793
50 798
51 811
52 812
53 814
54 823
55 824
56 825
57 838

List of values

[1, 2, 4, 30, 33, 38, 42, 45, 47, 48, 57, 59, 60, 64, 66, 69, 77, 82, 85, 104, 106, 118, 121, 194, 196, 201, 285, 287, 288, 290, 465, 467, 468, 470, 499, 500, 510, 610, 614, 626, 628, 631, 632, 642, 718, 723, 724, 785, 793, 798, 811, 812, 814, 823, 824, 825, 838]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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