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.

A379473 a(n) is the highest power of 3 dividing the sum of divisors of n.

Table of values

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

List of values

[1, 3, 1, 1, 3, 3, 1, 3, 1, 9, 3, 1, 1, 3, 3, 1, 9, 3, 1, 3, 1, 9, 3, 3, 1, 3, 1, 1, 3, 9, 1, 9, 3, 27, 3, 1, 1, 3, 1, 9, 3, 3, 1, 3, 3, 9, 3, 1, 3, 3, 9, 1, 27, 3, 9, 3, 1, 9, 3, 3, 1, 3, 1, 1, 3, 9, 1, 9, 3, 9, 9, 3, 1, 3, 1, 1, 3, 3, 1, 3, 1, 9, 3, 1, 27, 3, 3, 9, 9, 9, 1, 3, 1, 9, 3, 9, 1, 9, 3, 1, 3, 27, 1, 3, 3]