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.

A030317 Write the odd numbers 2n - 1 in base 2 and juxtapose these binary expansions; read the result bit-by-bit.

Table of values

n a(n)
1 1
2 1
3 1
4 1
5 0
6 1
7 1
8 1
9 1
10 1
11 0
12 0
13 1
14 1
15 0
16 1
17 1
18 1
19 1
20 0
21 1
22 1
23 1
24 1
25 1
26 1
27 0
28 0
29 0
30 1
31 1
32 0
33 0
34 1
35 1
36 1
37 0
38 1
39 0
40 1
41 1
42 0
43 1
44 1
45 1
46 1
47 1
48 0
49 0
50 1
51 1
52 1
53 0
54 1
55 1
56 1
57 1
58 1
59 0
60 1
61 1
62 1
63 1
64 1
65 1
66 1
67 0
68 0
69 0
70 0
71 1
72 1
73 0
74 0
75 0
76 1
77 1
78 1
79 0
80 0
81 1
82 0
83 1
84 1
85 0
86 0
87 1
88 1
89 1
90 1

List of values

[1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, 0, 0, 1, 1, 1, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 1, 1, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 1, 1]