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.

A329643 a(n) = Sum_{d|n} [-1 == A008683(n/d)] * A323244(d), where A323244(x) gives the deficiency of A156552(x).

Table of values

n a(n)
1 0
2 0
3 0
4 1
5 0
6 2
7 0
8 2
9 1
10 2
11 0
12 6
13 0
14 2
15 2
16 6
17 0
18 4
19 0
20 7
21 2
22 2
23 0
24 16
25 1
26 2
27 0
28 18
29 0
30 11
31 0
32 6
33 2
34 2
35 2
36 22
37 0
38 2
39 2
40 24
41 0
42 17
43 0
44 20
45 2
46 2
47 0
48 28
49 1
50 1
51 2
52 48
53 0
54 16
55 2
56 28
57 2
58 2
59 0
60 39
61 0
62 2
63 -3
64 30
65 2
66 36
67 0
68 84
69 2
70 19
71 0
72 36
73 0
74 2
75 -2
76 258
77 2
78 38
79 0
80 28
81 4
82 2
83 0
84 69
85 2
86 2
87 2
88 72
89 0
90 31
91 2
92 228
93 2
94 2
95 2
96 76
97 0
98 4
99 14
100 37
101 0
102 94
103 0
104 136
105 -3

List of values

[0, 0, 0, 1, 0, 2, 0, 2, 1, 2, 0, 6, 0, 2, 2, 6, 0, 4, 0, 7, 2, 2, 0, 16, 1, 2, 0, 18, 0, 11, 0, 6, 2, 2, 2, 22, 0, 2, 2, 24, 0, 17, 0, 20, 2, 2, 0, 28, 1, 1, 2, 48, 0, 16, 2, 28, 2, 2, 0, 39, 0, 2, -3, 30, 2, 36, 0, 84, 2, 19, 0, 36, 0, 2, -2, 258, 2, 38, 0, 28, 4, 2, 0, 69, 2, 2, 2, 72, 0, 31, 2, 228, 2, 2, 2, 76, 0, 4, 14, 37, 0, 94, 0, 136, -3]