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.

A296072 a(n) = Product_{d|n, d A019565(A289814(A295882(d))); a product obtained from the -1's present in balanced ternary representation of the deficiencies of the proper divisors of n.

Table of values

n a(n)
1 1
2 1
3 1
4 1
5 1
6 2
7 1
8 1
9 2
10 1
11 1
12 2
13 1
14 3
15 2
16 1
17 1
18 12
19 1
20 2
21 6
22 1
23 1
24 12
25 1
26 1
27 12
28 3
29 1
30 12
31 1
32 1
33 2
34 15
35 3
36 216
37 1
38 5
39 2
40 6
41 1
42 6
43 1
44 2
45 36
46 5
47 1
48 180
49 3
50 10
51 30
52 1
53 1
54 1080
55 1
56 3
57 10
58 1
59 1
60 3240
61 1
62 1
63 36
64 1
65 1
66 20
67 1
68 450
69 10
70 30
71 1
72 45360
73 1
74 1
75 30
76 75
77 3
78 10
79 1
80 60
81 360
82 1
83 1
84 540
85 15
86 105
87 2
88 2
89 1
90 3240
91 3
92 50
93 2
94 35
95 5
96 2520
97 1
98 630
99 60
100 90
101 1
102 900

List of values

[1, 1, 1, 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 3, 2, 1, 1, 12, 1, 2, 6, 1, 1, 12, 1, 1, 12, 3, 1, 12, 1, 1, 2, 15, 3, 216, 1, 5, 2, 6, 1, 6, 1, 2, 36, 5, 1, 180, 3, 10, 30, 1, 1, 1080, 1, 3, 10, 1, 1, 3240, 1, 1, 36, 1, 1, 20, 1, 450, 10, 30, 1, 45360, 1, 1, 30, 75, 3, 10, 1, 60, 360, 1, 1, 540, 15, 105, 2, 2, 1, 3240, 3, 50, 2, 35, 5, 2520, 1, 630, 60, 90, 1, 900]