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.

A289813 A binary encoding of the ones in ternary representation of n (see Comments for precise definition).

Table of values

n a(n)
0 0
1 1
2 0
3 2
4 3
5 2
6 0
7 1
8 0
9 4
10 5
11 4
12 6
13 7
14 6
15 4
16 5
17 4
18 0
19 1
20 0
21 2
22 3
23 2
24 0
25 1
26 0
27 8
28 9
29 8
30 10
31 11
32 10
33 8
34 9
35 8
36 12
37 13
38 12
39 14
40 15
41 14
42 12
43 13
44 12
45 8
46 9
47 8
48 10
49 11
50 10
51 8
52 9
53 8
54 0
55 1
56 0
57 2
58 3
59 2
60 0
61 1
62 0
63 4
64 5
65 4
66 6
67 7
68 6
69 4
70 5
71 4
72 0
73 1
74 0
75 2
76 3
77 2
78 0
79 1
80 0
81 16

List of values

[0, 1, 0, 2, 3, 2, 0, 1, 0, 4, 5, 4, 6, 7, 6, 4, 5, 4, 0, 1, 0, 2, 3, 2, 0, 1, 0, 8, 9, 8, 10, 11, 10, 8, 9, 8, 12, 13, 12, 14, 15, 14, 12, 13, 12, 8, 9, 8, 10, 11, 10, 8, 9, 8, 0, 1, 0, 2, 3, 2, 0, 1, 0, 4, 5, 4, 6, 7, 6, 4, 5, 4, 0, 1, 0, 2, 3, 2, 0, 1, 0, 16]