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.

A363012 a(n) = Sum_{d|n} d*tau(d)*phi(d)*mu(n/d).

Table of values

n a(n)
1 1
2 3
3 11
4 20
5 39
6 33
7 83
8 104
9 150
10 117
11 219
12 220
13 311
14 249
15 429
16 512
17 543
18 450
19 683
20 780
21 913
22 657
23 1011
24 1144
25 1460
26 933
27 1782
28 1660
29 1623
30 1287
31 1859
32 2432
33 2409
34 1629
35 3237
36 3000
37 2663
38 2049
39 3421
40 4056
41 3279
42 2739
43 3611
44 4380
45 5850
46 3033
47 4323
48 5632
49 6090
50 4380

List of values

[1, 3, 11, 20, 39, 33, 83, 104, 150, 117, 219, 220, 311, 249, 429, 512, 543, 450, 683, 780, 913, 657, 1011, 1144, 1460, 933, 1782, 1660, 1623, 1287, 1859, 2432, 2409, 1629, 3237, 3000, 2663, 2049, 3421, 4056, 3279, 2739, 3611, 4380, 5850, 3033, 4323, 5632, 6090, 4380]

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

Content is available under The OEIS End-User License Agreement.