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.

A096445 Number of reduced primitive positive definite binary quadratic forms of determinant n^2.

Table of values

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

List of values

[1, 1, 2, 2, 2, 4, 4, 4, 6, 4, 6, 8, 6, 8, 8, 8, 8, 12, 10, 8, 16, 12, 12, 16, 10, 12, 18, 16, 14, 16, 16, 16, 24, 16, 16, 24, 18, 20, 24, 16, 20, 32, 22, 24, 24, 24, 24, 32, 28, 20, 32, 24, 26, 36, 24, 32, 40, 28, 30, 32, 30, 32, 48, 32, 24]