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.

A175920 Convert n to binary. XNOR each respective digit of binary n and binary A030101(n), where A030101(n) is the reversal of the order of the digits in the binary representation of n (given in decimal). a(n) is the decimal value of the result.

Table of values

n a(n)
0 0
1 1
2 0
3 3
4 2
5 7
6 2
7 7
8 6
9 15
10 0
11 9
12 0
13 9
14 6
15 15
16 14
17 31
18 4
19 21
20 14
21 31
22 4
23 21
24 4
25 21
26 14
27 31
28 4
29 21
30 14
31 31
32 30
33 63
34 12
35 45
36 18
37 51
38 0
39 33
40 18
41 51
42 0
43 33
44 30
45 63
46 12
47 45
48 12
49 45
50 30
51 63
52 0
53 33
54 18
55 51
56 0
57 33
58 18
59 51
60 12
61 45
62 30
63 63
64 62
65 127
66 28
67 93
68 42
69 107
70 8
71 73
72 62
73 127
74 28
75 93
76 42

List of values

[0, 1, 0, 3, 2, 7, 2, 7, 6, 15, 0, 9, 0, 9, 6, 15, 14, 31, 4, 21, 14, 31, 4, 21, 4, 21, 14, 31, 4, 21, 14, 31, 30, 63, 12, 45, 18, 51, 0, 33, 18, 51, 0, 33, 30, 63, 12, 45, 12, 45, 30, 63, 0, 33, 18, 51, 0, 33, 18, 51, 12, 45, 30, 63, 62, 127, 28, 93, 42, 107, 8, 73, 62, 127, 28, 93, 42]