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.

A075491 Sum of digits of n minus number of divisors of n.

Table of values

n a(n)
1 0
2 0
3 1
4 1
5 3
6 2
7 5
8 4
9 6
10 -3
11 0
12 -3
13 2
14 1
15 2
16 2
17 6
18 3
19 8
20 -4
21 -1
22 0
23 3
24 -2
25 4
26 4
27 5
28 4
29 9
30 -5
31 2
32 -1
33 2
34 3
35 4
36 0
37 8
38 7
39 8
40 -4
41 3
42 -2
43 5
44 2
45 3
46 6
47 9
48 2
49 10
50 -1
51 2
52 1
53 6
54 1
55 6
56 3
57 8
58 9
59 12
60 -6
61 5
62 4
63 3
64 3
65 7
66 4
67 11
68 8
69 11
70 -1
71 6
72 -3
73 8
74 7
75 6
76 7
77 10
78 7
79 14
80 -2
81 4
82 6
83 9
84 0
85 9
86 10
87 11
88 8
89 15
90 -3
91 6
92 5
93 8
94 9
95 10
96 3
97 14
98 11
99 12
100 -8
101 0
102 -5
103 2
104 -3
105 -2
106 3
107 6
108 -3
109 8
110 -6

List of values

[0, 0, 1, 1, 3, 2, 5, 4, 6, -3, 0, -3, 2, 1, 2, 2, 6, 3, 8, -4, -1, 0, 3, -2, 4, 4, 5, 4, 9, -5, 2, -1, 2, 3, 4, 0, 8, 7, 8, -4, 3, -2, 5, 2, 3, 6, 9, 2, 10, -1, 2, 1, 6, 1, 6, 3, 8, 9, 12, -6, 5, 4, 3, 3, 7, 4, 11, 8, 11, -1, 6, -3, 8, 7, 6, 7, 10, 7, 14, -2, 4, 6, 9, 0, 9, 10, 11, 8, 15, -3, 6, 5, 8, 9, 10, 3, 14, 11, 12, -8, 0, -5, 2, -3, -2, 3, 6, -3, 8, -6]