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.

A293897 Sum of proper divisors of n of the form 3k+1.

Table of values

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

List of values

[0, 1, 1, 1, 1, 1, 1, 5, 1, 1, 1, 5, 1, 8, 1, 5, 1, 1, 1, 15, 8, 1, 1, 5, 1, 14, 1, 12, 1, 11, 1, 21, 1, 1, 8, 5, 1, 20, 14, 15, 1, 8, 1, 27, 1, 1, 1, 21, 8, 36, 1, 18, 1, 1, 1, 40, 20, 1, 1, 15, 1, 32, 8, 21, 14, 23, 1, 39, 1, 18, 1, 5, 1, 38, 26, 24, 8, 14, 1, 71, 1, 1, 1, 40, 1, 44, 1, 27, 1, 11, 21, 51, 32, 1, 20, 21, 1, 57, 1, 40, 1, 35, 1, 70, 8]