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.

A348983 a(n) = Sum_{d|n} A038040(d) * A322582(n/d), where A038040(n) = n*d(n), A322582(n) = n - A003958(n), and A003958 is fully multiplicative with a(p) = (p-1).

Table of values

n a(n)
1 0
2 1
3 1
4 7
5 1
6 14
7 1
8 31
9 11
10 20
11 1
12 80
13 1
14 26
15 23
16 111
17 1
18 109
19 1
20 122
21 29
22 38
23 1
24 328
25 19
26 44
27 76
28 164
29 1
30 250
31 1
32 351
33 41
34 56
35 35
36 565
37 1
38 62
39 47
40 514
41 1
42 334
43 1
44 248
45 208
46 74
47 1
48 1128
49 27
50 245
51 59
52 290
53 1
54 650
55 47
56 700
57 65
58 92
59 1
60 1336
61 1
62 98
63 274
64 1023
65 53
66 502
67 1
68 374
69 77
70 490
71 1
72 2213
73 1
74 116
75 302
76 416
77 53

List of values

[0, 1, 1, 7, 1, 14, 1, 31, 11, 20, 1, 80, 1, 26, 23, 111, 1, 109, 1, 122, 29, 38, 1, 328, 19, 44, 76, 164, 1, 250, 1, 351, 41, 56, 35, 565, 1, 62, 47, 514, 1, 334, 1, 248, 208, 74, 1, 1128, 27, 245, 59, 290, 1, 650, 47, 700, 65, 92, 1, 1336, 1, 98, 274, 1023, 53, 502, 1, 374, 77, 490, 1, 2213, 1, 116, 302, 416, 53]