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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.

A384956 Binary XOR of number of 1-bits in the binary representation of n and number of 0-bits in the binary representation of n, a(0) = 1.

Table of values

n a(n)
0 1
1 1
2 0
3 2
4 3
5 3
6 3
7 3
8 2
9 0
10 0
11 2
12 0
13 2
14 2
15 4
16 5
17 1
18 1
19 1
20 1
21 1
22 1
23 5
24 1
25 1
26 1
27 5
28 1
29 5
30 5
31 5
32 4
33 6
34 6
35 0
36 6
37 0
38 0
39 6
40 6
41 0
42 0
43 6
44 0
45 6
46 6
47 4
48 6
49 0
50 0
51 6
52 0
53 6
54 6
55 4
56 0
57 6
58 6
59 4
60 6
61 4
62 4
63 6
64 7
65 7
66 7
67 7
68 7
69 7
70 7
71 7
72 7
73 7
74 7
75 7
76 7
77 7
78 7
79 7
80 7
81 7
82 7
83 7
84 7
85 7
86 7

List of values

[1, 1, 0, 2, 3, 3, 3, 3, 2, 0, 0, 2, 0, 2, 2, 4, 5, 1, 1, 1, 1, 1, 1, 5, 1, 1, 1, 5, 1, 5, 5, 5, 4, 6, 6, 0, 6, 0, 0, 6, 6, 0, 0, 6, 0, 6, 6, 4, 6, 0, 0, 6, 0, 6, 6, 4, 0, 6, 6, 4, 6, 4, 4, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7]

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