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.

A326059 a(n) = A285309(n) - n, where A285309 gives the sum of nonsquare divisors of n.

Table of values

n a(n)
1 -1
2 0
3 0
4 -2
5 0
6 5
7 0
8 2
9 -6
10 7
11 0
12 11
13 0
14 9
15 8
16 -6
17 0
18 11
19 0
20 17
21 10
22 13
23 0
24 31
25 -20
26 15
27 3
28 23
29 0
30 41
31 0
32 10
33 14
34 19
35 12
36 5
37 0
38 21
39 16
40 45
41 0
42 53
43 0
44 35
45 23
46 25
47 0
48 55
49 -42
50 17
51 20
52 41
53 0
54 56
55 16
56 59
57 22
58 31
59 0
60 103
61 0
62 33
63 31
64 -22
65 18
66 77
67 0
68 53
69 26
70 73
71 0
72 73
73 0
74 39
75 23
76 59
77 18
78 89
79 0
80 85
81 -51
82 43
83 0
84 135
85 22
86 45
87 32
88 87
89 0
90 134
91 20

List of values

[-1, 0, 0, -2, 0, 5, 0, 2, -6, 7, 0, 11, 0, 9, 8, -6, 0, 11, 0, 17, 10, 13, 0, 31, -20, 15, 3, 23, 0, 41, 0, 10, 14, 19, 12, 5, 0, 21, 16, 45, 0, 53, 0, 35, 23, 25, 0, 55, -42, 17, 20, 41, 0, 56, 16, 59, 22, 31, 0, 103, 0, 33, 31, -22, 18, 77, 0, 53, 26, 73, 0, 73, 0, 39, 23, 59, 18, 89, 0, 85, -51, 43, 0, 135, 22, 45, 32, 87, 0, 134, 20]