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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.

A371256 The run lengths transform of the ternary expansion of n corresponds to the run lengths transform of the binary expansion of a(n).

Table of values

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

List of values

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

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