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.

A228856 Nodes of tree generated as follows: (1,2) is an edge, and if (x,y) is an edge, then (y,y+x), (y,2y+x), and (y,3y+x) are edges.

Table of values

n a(n)
1 1
2 2
3 3
4 5
5 7
6 8
7 9
8 11
9 12
10 13
11 14
12 16
13 17
14 18
15 19
16 21
17 22
18 23
19 25
20 26
21 27
22 29
23 30
24 31
25 33
26 34
27 35
28 36
29 37
30 39
31 41
32 43
33 44
34 45
35 46
36 47
37 49
38 50
39 52
40 53
41 55
42 56
43 57
44 59
45 60
46 61
47 62
48 63
49 64
50 65
51 66
52 67
53 68
54 69
55 70
56 71
57 73
58 74
59 75
60 76
61 77
62 79
63 80
64 81
65 83
66 84

List of values

[1, 2, 3, 5, 7, 8, 9, 11, 12, 13, 14, 16, 17, 18, 19, 21, 22, 23, 25, 26, 27, 29, 30, 31, 33, 34, 35, 36, 37, 39, 41, 43, 44, 45, 46, 47, 49, 50, 52, 53, 55, 56, 57, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 73, 74, 75, 76, 77, 79, 80, 81, 83, 84]

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

Content is available under The OEIS End-User License Agreement.