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.

A043706 Numbers whose base-3 representation has an odd number of runs.

Table of values

n a(n)
1 1
2 2
3 4
4 8
5 10
6 11
7 13
8 15
9 16
10 19
11 20
12 21
13 23
14 26
15 28
16 29
17 31
18 35
19 37
20 38
21 40
22 42
23 43
24 45
25 49
26 51
27 52
28 55
29 56
30 58
31 62
32 63
33 66
34 68
35 71
36 73
37 74
38 75
39 77
40 80
41 82
42 83
43 85
44 89
45 91
46 92
47 94
48 96
49 97
50 100
51 101
52 102
53 104
54 107
55 109
56 110
57 112
58 116
59 118

List of values

[1, 2, 4, 8, 10, 11, 13, 15, 16, 19, 20, 21, 23, 26, 28, 29, 31, 35, 37, 38, 40, 42, 43, 45, 49, 51, 52, 55, 56, 58, 62, 63, 66, 68, 71, 73, 74, 75, 77, 80, 82, 83, 85, 89, 91, 92, 94, 96, 97, 100, 101, 102, 104, 107, 109, 110, 112, 116, 118]