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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.

A049468 Replace each fraction p/q in Farey tree A007305/A007306 with p+2q.

Table of values

n a(n)
0 2
1 3
2 5
3 7
4 8
5 9
6 12
7 13
8 11
9 11
10 16
11 19
12 17
13 18
14 21
15 19
16 14
17 13
18 20
19 25
20 23
21 26
22 31
23 29
24 22
25 23
26 31
27 34
28 29
29 27
30 30
31 25
32 17
33 15
34 24
35 31
36 29
37 34
38 41
39 39
40 30
41 33
42 45
43 50
44 43
45 41
46 46
47 39
48 27
49 28
50 41
51 49
52 44
53 47
54 55
55 50
56 37
57 35
58 46
59 49
60 41
61 36
62 39
63 31
64 20
65 17
66 28
67 37

List of values

[2, 3, 5, 7, 8, 9, 12, 13, 11, 11, 16, 19, 17, 18, 21, 19, 14, 13, 20, 25, 23, 26, 31, 29, 22, 23, 31, 34, 29, 27, 30, 25, 17, 15, 24, 31, 29, 34, 41, 39, 30, 33, 45, 50, 43, 41, 46, 39, 27, 28, 41, 49, 44, 47, 55, 50, 37, 35, 46, 49, 41, 36, 39, 31, 20, 17, 28, 37]

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

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