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.

A069972 a(n) = Sum_{d|2*n,d+1|2*n} d.

Table of values

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

List of values

[1, 1, 3, 1, 1, 6, 1, 1, 3, 5, 1, 6, 1, 1, 8, 1, 1, 6, 1, 5, 9, 1, 1, 6, 1, 1, 3, 8, 1, 15, 1, 1, 3, 1, 1, 14, 1, 1, 3, 5, 1, 12, 1, 1, 17, 1, 1, 6, 1, 5, 3, 1, 1, 6, 11, 8, 3, 1, 1, 15, 1, 1, 9, 1, 1, 17, 1, 1, 3, 5, 1, 14, 1, 1, 8, 1, 1, 18, 1, 5, 3, 1, 1, 19, 1, 1, 3, 1, 1, 24, 14, 1, 3, 1, 1, 6, 1, 1]