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.

A049449 Product of numerator and denominator of fractions in Farey tree A007305/A007306.

Table of values

n a(n)
0 0
1 1
2 2
3 3
4 6
5 4
6 10
7 15
8 12
9 5
10 14
11 24
12 21
13 28
14 40
15 35
16 20
17 6
18 18
19 33
20 30
21 44
22 65
23 60
24 36
25 45
26 84
27 104
28 77
29 70
30 88
31 63
32 30
33 7
34 22
35 42
36 39
37 60
38 90
39 85
40 52
41 70
42 133
43 168
44 126
45 119
46 152
47 112
48 55
49 66
50 144
51 209
52 170
53 198
54 273
55 228
56 126
57 117
58 204
59 234
60 165
61 130
62 154
63 99
64 42
65 8

List of values

[0, 1, 2, 3, 6, 4, 10, 15, 12, 5, 14, 24, 21, 28, 40, 35, 20, 6, 18, 33, 30, 44, 65, 60, 36, 45, 84, 104, 77, 70, 88, 63, 30, 7, 22, 42, 39, 60, 90, 85, 52, 70, 133, 168, 126, 119, 152, 112, 55, 66, 144, 209, 170, 198, 273, 228, 126, 117, 204, 234, 165, 130, 154, 99, 42, 8]

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

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