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.

A293901 Sum of proper divisors of n of the form 4k+1.

Table of values

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

List of values

[0, 1, 1, 1, 1, 1, 1, 1, 1, 6, 1, 1, 1, 1, 6, 1, 1, 10, 1, 6, 1, 1, 1, 1, 6, 14, 10, 1, 1, 6, 1, 1, 1, 18, 6, 10, 1, 1, 14, 6, 1, 22, 1, 1, 15, 1, 1, 1, 1, 31, 18, 14, 1, 10, 6, 1, 1, 30, 1, 6, 1, 1, 31, 1, 19, 34, 1, 18, 1, 6, 1, 10, 1, 38, 31, 1, 1, 14, 1, 6, 10, 42, 1, 22, 23, 1, 30, 1, 1, 60, 14, 1, 1, 1, 6, 1, 1, 50, 43, 31, 1, 18, 1, 14, 27]