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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.

A065916 Denominator of sigma(8*n^2)/sigma(4*n^2).

Table of values

n a(n)
1 7
2 31
3 7
4 127
5 7
6 31
7 7
8 511
9 7
10 31
11 7
12 127
13 7
14 31
15 7
16 2047
17 7
18 31
19 7
20 127
21 7
22 31
23 7
24 511
25 7
26 31
27 7
28 127
29 7
30 31
31 7
32 8191
33 7
34 31
35 7
36 127
37 7
38 31
39 7
40 511
41 7
42 31
43 7
44 127
45 7
46 31
47 7
48 2047
49 7
50 31
51 7
52 127
53 7
54 31
55 7
56 511
57 7
58 31
59 7
60 127
61 7
62 31
63 7
64 32767
65 7
66 31
67 7
68 127
69 7
70 31
71 7
72 511
73 7

List of values

[7, 31, 7, 127, 7, 31, 7, 511, 7, 31, 7, 127, 7, 31, 7, 2047, 7, 31, 7, 127, 7, 31, 7, 511, 7, 31, 7, 127, 7, 31, 7, 8191, 7, 31, 7, 127, 7, 31, 7, 511, 7, 31, 7, 127, 7, 31, 7, 2047, 7, 31, 7, 127, 7, 31, 7, 511, 7, 31, 7, 127, 7, 31, 7, 32767, 7, 31, 7, 127, 7, 31, 7, 511, 7]

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