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.

A379484 a(n) is the highest power of 3 dividing sigma(A003961(n^2)), where A003961 is fully multiplicative with a(prime(i)) = prime(i+1), and sigma is the sum of divisors function.

Table of values

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

List of values

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