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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.

A357259 a(n) is the number of 2 X 2 Euclid-reduced matrices having determinant n.

Table of values

n a(n)
1 1
2 2
3 3
4 5
5 5
6 8
7 7
8 11
9 10
10 14
11 11
12 19
13 13
14 20
15 18
16 24
17 17
18 30
19 19
20 31
21 26
22 32
23 23
24 44
25 26
26 38
27 34
28 45
29 29
30 54
31 31
32 52
33 42
34 50
35 38
36 70
37 37
38 56
39 50
40 70
41 41
42 76
43 43
44 73
45 63
46 68
47 47
48 97
49 50
50 80
51 66
52 87
53 53
54 100
55 62
56 96
57 74
58 86
59 59
60 132
61 61
62 92
63 85
64 109
65 74
66 124
67 67
68 115
69 90
70 118

List of values

[1, 2, 3, 5, 5, 8, 7, 11, 10, 14, 11, 19, 13, 20, 18, 24, 17, 30, 19, 31, 26, 32, 23, 44, 26, 38, 34, 45, 29, 54, 31, 52, 42, 50, 38, 70, 37, 56, 50, 70, 41, 76, 43, 73, 63, 68, 47, 97, 50, 80, 66, 87, 53, 100, 62, 96, 74, 86, 59, 132, 61, 92, 85, 109, 74, 124, 67, 115, 90, 118]

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

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