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.

A140531 Concatenate subsequences 0, 1, 2, 4, ..., 2^k.

Table of values

n a(n)
0 0
1 0
2 1
3 0
4 1
5 2
6 0
7 1
8 2
9 4
10 0
11 1
12 2
13 4
14 8
15 0
16 1
17 2
18 4
19 8
20 16
21 0
22 1
23 2
24 4
25 8
26 16
27 32
28 0
29 1
30 2
31 4
32 8
33 16
34 32
35 64
36 0
37 1
38 2
39 4
40 8
41 16
42 32
43 64
44 128
45 0
46 1
47 2
48 4
49 8
50 16
51 32
52 64
53 128
54 256
55 0
56 1
57 2
58 4
59 8
60 16
61 32
62 64
63 128
64 256
65 512
66 0
67 1
68 2
69 4
70 8
71 16
72 32
73 64
74 128
75 256
76 512
77 1024

List of values

[0, 0, 1, 0, 1, 2, 0, 1, 2, 4, 0, 1, 2, 4, 8, 0, 1, 2, 4, 8, 16, 0, 1, 2, 4, 8, 16, 32, 0, 1, 2, 4, 8, 16, 32, 64, 0, 1, 2, 4, 8, 16, 32, 64, 128, 0, 1, 2, 4, 8, 16, 32, 64, 128, 256, 0, 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 0, 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024]