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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.

A106032 a(n) is the number of orbits under the action of GL_2[Z] on the primitive binary quadratic forms of discriminant D, where D>1 is the n-th fundamental discriminant.

Table of values

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

List of values

[1, 1, 2, 1, 1, 2, 2, 2, 1, 2, 1, 2, 1, 2, 1, 2, 2, 4, 1, 2, 2, 1, 2, 2, 2, 2, 1, 2, 2, 1, 1, 2, 4, 1, 1, 4, 2, 2, 2, 3, 1, 4, 2, 3, 1, 2, 4, 1, 2, 4, 4, 2, 1, 2, 1, 2, 2, 2, 1]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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