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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.

A090792 a(0)=1; for n>0, a(n)=a([n/2])+a([n/4])+a([n/8]).

Table of values

n a(n)
0 1
1 3
2 5
3 5
4 9
5 9
6 9
7 9
8 17
9 17
10 17
11 17
12 17
13 17
14 17
15 17
16 31
17 31
18 31
19 31
20 31
21 31
22 31
23 31
24 31
25 31
26 31
27 31
28 31
29 31
30 31
31 31
32 57
33 57
34 57
35 57
36 57
37 57
38 57
39 57
40 57
41 57
42 57
43 57
44 57
45 57
46 57
47 57
48 57
49 57
50 57
51 57
52 57
53 57
54 57
55 57
56 57
57 57
58 57
59 57
60 57
61 57
62 57
63 57
64 105
65 105
66 105
67 105
68 105
69 105

List of values

[1, 3, 5, 5, 9, 9, 9, 9, 17, 17, 17, 17, 17, 17, 17, 17, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 105, 105, 105, 105, 105, 105]

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