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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.

A374355 a(n) is the least fibbinary number f <= n such that n - f is also a fibbinary number whose binary expansion has no common 1's with that of f (where fibbinary numbers correspond to A003714).

Table of values

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

List of values

[0, 0, 0, 1, 0, 0, 2, 2, 0, 0, 0, 1, 4, 4, 4, 5, 0, 0, 0, 1, 0, 0, 2, 2, 8, 8, 8, 9, 8, 8, 10, 10, 0, 0, 0, 1, 0, 0, 2, 2, 0, 0, 0, 1, 4, 4, 4, 5, 16, 16, 16, 17, 16, 16, 18, 18, 16, 16, 16, 17, 20, 20, 20, 21, 0, 0, 0, 1, 0, 0, 2, 2, 0, 0, 0, 1, 4, 4, 4, 5, 0]

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